diff --git a/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 7f83965f1a..97238978de 100644
--- a/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -369,6 +369,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_1.0_Ertheia/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_1.0_Ertheia/dist/game/data/stats/skills/documentation.txt
index ed046dcaf7..3d80b12087 100644
--- a/L2J_Mobius_1.0_Ertheia/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_1.0_Ertheia/dist/game/data/stats/skills/documentation.txt
@@ -337,6 +337,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 7f83965f1a..97238978de 100644
--- a/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -369,6 +369,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_2.5_Underground/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_2.5_Underground/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_2.5_Underground/dist/game/data/stats/skills/documentation.txt
index ed046dcaf7..3d80b12087 100644
--- a/L2J_Mobius_2.5_Underground/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_2.5_Underground/dist/game/data/stats/skills/documentation.txt
@@ -337,6 +337,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 7f83965f1a..97238978de 100644
--- a/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -369,6 +369,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_3.0_Helios/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_3.0_Helios/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_3.0_Helios/dist/game/data/stats/skills/documentation.txt
index ed046dcaf7..3d80b12087 100644
--- a/L2J_Mobius_3.0_Helios/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_3.0_Helios/dist/game/data/stats/skills/documentation.txt
@@ -337,6 +337,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 327de4e647..bf24b391b8 100644
--- a/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -374,6 +374,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_4.0_GrandCrusade/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_4.0_GrandCrusade/dist/game/data/stats/skills/documentation.txt
index c47e59a8c4..2d7db86519 100644
--- a/L2J_Mobius_4.0_GrandCrusade/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_4.0_GrandCrusade/dist/game/data/stats/skills/documentation.txt
@@ -342,6 +342,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 3ea0fadb77..29c6a8f851 100644
--- a/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -379,6 +379,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_5.0_Salvation/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_5.0_Salvation/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_5.0_Salvation/dist/game/data/stats/skills/documentation.txt
index 47b1f61bb5..3700ae3089 100644
--- a/L2J_Mobius_5.0_Salvation/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_5.0_Salvation/dist/game/data/stats/skills/documentation.txt
@@ -347,6 +347,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 73d6d960a3..e3fe71bb1e 100644
--- a/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -380,6 +380,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_5.5_EtinasFate/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_5.5_EtinasFate/dist/game/data/stats/skills/documentation.txt
index 84641d7d6f..21a78c25a6 100644
--- a/L2J_Mobius_5.5_EtinasFate/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_5.5_EtinasFate/dist/game/data/stats/skills/documentation.txt
@@ -348,6 +348,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 73d6d960a3..e3fe71bb1e 100644
--- a/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -380,6 +380,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/documentation.txt
index 84641d7d6f..21a78c25a6 100644
--- a/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/documentation.txt
@@ -348,6 +348,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/EffectMasterHandler.java
index a59d55b96d..1b57b7250f 100644
--- a/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -380,6 +380,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/stats/skills/documentation.txt
index c5295a3a6e..aa38fbe909 100644
--- a/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_7.0_PreludeOfWar/dist/game/data/stats/skills/documentation.txt
@@ -347,6 +347,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 8531b684f8..f45c7985af 100644
--- a/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -381,6 +381,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_8.0_Homunculus/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_8.0_Homunculus/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_8.0_Homunculus/dist/game/data/stats/skills/documentation.txt
index e3c907937e..ba8e77bb39 100644
--- a/L2J_Mobius_8.0_Homunculus/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_8.0_Homunculus/dist/game/data/stats/skills/documentation.txt
@@ -348,6 +348,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 36cd12a9fc..44b82973e2 100644
--- a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -382,6 +382,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDualRange", TriggerSkillByDualRange::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/stats/skills/documentation.txt
index 83ec0450a5..b6beaaed26 100644
--- a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/dist/game/data/stats/skills/documentation.txt
@@ -349,6 +349,7 @@ TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
 TriggerSkillByDualRange: Triggers a specified skill based on close or ranged distance. (l2jmobius)
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 770b0ba3f3..26fc48c913 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -365,6 +365,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/stats/skills/documentation.txt
index 60df008dc2..b00a68dfa3 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/stats/skills/documentation.txt
@@ -333,6 +333,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 770b0ba3f3..26fc48c913 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -365,6 +365,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/stats/skills/documentation.txt
index 60df008dc2..b00a68dfa3 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_2.1_Zaken/dist/game/data/stats/skills/documentation.txt
@@ -333,6 +333,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 9e292c0bb9..d05857031f 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -366,6 +366,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/stats/skills/documentation.txt
index 6d8a292bda..f802180616 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_2.2_Antharas/dist/game/data/stats/skills/documentation.txt
@@ -334,6 +334,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 03b1447e4f..8a7611b956 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -370,6 +370,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/stats/skills/documentation.txt
index 98e7d5a4e5..9d46ec24e0 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/dist/game/data/stats/skills/documentation.txt
@@ -338,6 +338,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 03b1447e4f..8a7611b956 100644
--- a/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -370,6 +370,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/stats/skills/documentation.txt
index 98e7d5a4e5..9d46ec24e0 100644
--- a/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/dist/game/data/stats/skills/documentation.txt
@@ -338,6 +338,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/EffectMasterHandler.java
index b32ecec476..b70bdeddb4 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -372,6 +372,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/stats/skills/documentation.txt
index 4efd1a55ce..e487805be9 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/stats/skills/documentation.txt
@@ -340,6 +340,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 88e06d4622..833c3dd255 100644
--- a/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -368,6 +368,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Classic_Interlude/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Classic_Interlude/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Classic_Interlude/dist/game/data/stats/skills/documentation.txt
index 35c8e6201e..9eb4376efe 100644
--- a/L2J_Mobius_Classic_Interlude/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Classic_Interlude/dist/game/data/stats/skills/documentation.txt
@@ -335,6 +335,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 349a12aa17..f8fc447bd3 100644
--- a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -378,6 +378,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByAvoid", TriggerSkillByAvoid::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/stats/skills/documentation.txt
index 1f32c75fea..660e2e0028 100644
--- a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/dist/game/data/stats/skills/documentation.txt
@@ -346,6 +346,7 @@ TriggerSkillByAttack: Triggers a specified skill when you deal damage.
 TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage.
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.
diff --git a/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/EffectMasterHandler.java b/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/EffectMasterHandler.java
index 6db860ab74..3e8b088abd 100644
--- a/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/EffectMasterHandler.java
+++ b/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/EffectMasterHandler.java
@@ -380,6 +380,7 @@ public class EffectMasterHandler
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDamage", TriggerSkillByDamage::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDeathBlow", TriggerSkillByDeathBlow::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByDualRange", TriggerSkillByDualRange::new);
+		EffectHandler.getInstance().registerHandler("TriggerSkillByHpPercent", TriggerSkillByHpPercent::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByKill", TriggerSkillByKill::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillByMagicType", TriggerSkillByMagicType::new);
 		EffectHandler.getInstance().registerHandler("TriggerSkillBySkill", TriggerSkillBySkill::new);
diff --git a/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java b/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
new file mode 100644
index 0000000000..c6bcec6fed
--- /dev/null
+++ b/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/scripts/handlers/effecthandlers/TriggerSkillByHpPercent.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import org.l2jmobius.gameserver.data.xml.SkillData;
+import org.l2jmobius.gameserver.model.StatSet;
+import org.l2jmobius.gameserver.model.actor.Creature;
+import org.l2jmobius.gameserver.model.effects.AbstractEffect;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.impl.creature.OnCreatureHpChange;
+import org.l2jmobius.gameserver.model.events.listeners.ConsumerEventListener;
+import org.l2jmobius.gameserver.model.items.instance.ItemInstance;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.model.skills.SkillCaster;
+
+/**
+ * @author Mobius
+ */
+public class TriggerSkillByHpPercent extends AbstractEffect
+{
+	private final int _skillId;
+	private final int _skillLevel;
+	private final int _percentFrom;
+	private final int _percentTo;
+	
+	public TriggerSkillByHpPercent(StatSet params)
+	{
+		_skillId = params.getInt("skillId", 0);
+		_skillLevel = params.getInt("skillLevel", 1);
+		_percentFrom = params.getInt("percentFrom", 0);
+		_percentTo = params.getInt("percentTo", 100);
+	}
+	
+	@Override
+	public void onStart(Creature effector, Creature effected, Skill skill, ItemInstance item)
+	{
+		effected.addListener(new ConsumerEventListener(effected, EventType.ON_CREATURE_HP_CHANGE, (OnCreatureHpChange event) -> onHpChange(event), this));
+	}
+	
+	@Override
+	public void onExit(Creature effector, Creature effected, Skill skill)
+	{
+		effected.removeListenerIf(EventType.ON_CREATURE_HP_CHANGE, listener -> listener.getOwner() == this);
+	}
+	
+	private void onHpChange(OnCreatureHpChange event)
+	{
+		final Creature creature = event.getCreature();
+		final int hpPercent = creature.getCurrentHpPercent();
+		if ((hpPercent >= _percentFrom) && (hpPercent <= _percentTo))
+		{
+			SkillCaster.triggerCast(creature, creature, SkillData.getInstance().getSkill(_skillId, _skillLevel));
+		}
+	}
+}
diff --git a/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/stats/skills/documentation.txt b/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/stats/skills/documentation.txt
index 17ae344e3d..e7af4d34c7 100644
--- a/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/stats/skills/documentation.txt
+++ b/L2J_Mobius_Essence_5.0_Sylph/dist/game/data/stats/skills/documentation.txt
@@ -348,6 +348,7 @@ TriggerSkillByAvoid: Triggers a specified skill when you avoid autoattack damage
 TriggerSkillByDamage: Triggers a specified skill when you receive damage.
 TriggerSkillByDeathBlow: Triggers a specified skill when you land a death blow (killing a creature).
 TriggerSkillByDualRange: Triggers a specified skill based on close or ranged distance. (l2jmobius)
+TriggerSkillByHpPercent: Triggers a specified skill based on effected HP percent. (l2jmobius)
 TriggerSkillByKill: Triggers a specified skill when you kill a creature.
 TriggerSkillByMagicType: Triggers skill when you finish casting a skill with a specified magic type.
 TriggerSkillBySkillAttack: Triggers skill when you finish casting a skill that does damage.