diff --git a/L2J_Mobius_6.0_Fafurion/dist/game/data/skillTrees/dualClassSkillTree.xml b/L2J_Mobius_6.0_Fafurion/dist/game/data/skillTrees/dualClassSkillTree.xml
index 25c3b4efa8..13c80c2de9 100644
--- a/L2J_Mobius_6.0_Fafurion/dist/game/data/skillTrees/dualClassSkillTree.xml
+++ b/L2J_Mobius_6.0_Fafurion/dist/game/data/skillTrees/dualClassSkillTree.xml
@@ -115,5 +115,14 @@
 		<skill skillName="Dual - Shield of the Giants" skillId="1985" skillLvl="1" getLevel="1">
 			<item id="36078" count="4" />
 		</skill>
+		<skill skillName="Dual Certification - Vital" skillId="1998" skillLvl="1" getLevel="1">
+			<item id="36078" count="2" />
+		</skill>
+		<skill skillName="Dual Certification - Recovery" skillId="1999" skillLvl="1" getLevel="1">
+			<item id="36078" count="2" />
+		</skill>
+		<skill skillName="Dual Certification - Death" skillId="2000" skillLvl="1" getLevel="1">
+			<item id="36078" count="2" />
+		</skill>
 	</skillTree>
 </list>
\ No newline at end of file
diff --git a/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/01900-01999.xml b/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/01900-01999.xml
index f5010e14d4..7ab57abf7d 100644
--- a/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/01900-01999.xml
+++ b/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/01900-01999.xml
@@ -2398,13 +2398,31 @@
 		</effects>
 	</skill>
 	<skill id="1998" toLevel="1" name="Dual Certification - Vital">
-		<!-- Increases Acquired XP/ SP in Vitality state by $s1. -->
+		<!-- Increases Acquired XP/ SP in Vitality state by 10%. -->
 		<icon>icon.skill10336</icon>
-		<operateType>A1</operateType>
+		<operateType>P</operateType>
+		<effects>
+			<effect name="VitalityExpRate">
+				<amount>10</amount>
+				<mode>PER</mode>
+			</effect>
+		</effects>
 	</skill>
 	<skill id="1999" toLevel="1" name="Dual Certification - Recovery">
-		<!-- Decreases skill cooldown by $s1. -->
+		<!-- Decreases skill cooldown by 4%. -->
 		<icon>icon.skill11226</icon>
-		<operateType>A1</operateType>
+		<operateType>P</operateType>
+		<effects>
+			<effect name="Reuse">
+				<amount>-4</amount>
+				<mode>PER</mode>
+				<magicType>0</magicType>
+			</effect>
+			<effect name="Reuse">
+				<amount>-4</amount>
+				<mode>PER</mode>
+				<magicType>1</magicType>
+			</effect>
+		</effects>
 	</skill>
 </list>
diff --git a/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/02000-02099.xml b/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/02000-02099.xml
index cf07330586..9ddee61485 100644
--- a/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/02000-02099.xml
+++ b/L2J_Mobius_6.0_Fafurion/dist/game/data/stats/skills/02000-02099.xml
@@ -1,9 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <list xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../xsd/skills.xsd">
 	<skill id="2000" toLevel="1" name="Dual Certification - Death">
-		<!-- Increases P. Critical Damage and P./ M. Skill Critical Damage by $s1. -->
+		<!-- Increases P. Critical Damage and P./ M. Skill Critical Damage by 5%. -->
 		<icon>icon.skill10655</icon>
-		<operateType>A1</operateType>
+		<operateType>P</operateType>
+		<effects>
+			<effect name="CriticalDamage">
+				<amount>5</amount>
+				<mode>PER</mode>
+			</effect>
+			<effect name="MagicCriticalDamage">
+				<amount>5</amount>
+				<mode>PER</mode>
+			</effect>
+		</effects>
 	</skill>
 	<skill id="2001" toLevel="1" name="Red Potion">
 		<abnormalLvl>1</abnormalLvl>