diff --git a/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java b/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
index a181a33a0f..ca5bac9228 100644
--- a/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
+++ b/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
@@ -88,26 +88,26 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 			forEach(listNode, "reward", rewardNode ->
 			{
 				final int id = new StatSet(parseAttributes(rewardNode)).getInt("id");
-				final AtomicReference<List<ItemHolder>> word = new AtomicReference<>(new ArrayList<>());
-				final AtomicReference<List<ItemChanceHolder>> rewards = new AtomicReference<>(new ArrayList<>());
-				AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
-				AtomicReference<Double> chanceSum = new AtomicReference<>(0.0);
+				final List<ItemHolder> word = new ArrayList<>();
+				final List<ItemChanceHolder> rewards = new ArrayList<>();
+				final AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
+				final AtomicReference<Double> chanceSum = new AtomicReference<>(0d);
 				forEach(rewardNode, "word", wordNode ->
 				{
 					String[] letter = wordNode.getTextContent().trim().split(";");
 					for (String token : letter)
 					{
 						int count = 1;
-						for (ItemHolder check : word.get())
+						for (ItemHolder check : word)
 						{
 							if (check.getId() == letters.get(token))
 							{
 								count = Math.toIntExact(check.getCount() + 1);
-								word.get().remove(check);
+								word.remove(check);
 								break;
 							}
 						}
-						word.get().add(new ItemHolder(letters.get(token), count));
+						word.add(new ItemHolder(letters.get(token), count));
 					}
 				});
 				forEach(rewardNode, "rewards", rewardsNode ->
@@ -121,12 +121,12 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 						{
 							chanceSum.set(chanceSum.get() + chance);
 						}
-						rewards.get().add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
+						rewards.add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
 					});
 				});
-				LetterCollectorManager lcm = LetterCollectorManager.getInstance();
-				lcm.addWords(id, word.get());
-				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards.get(), chanceSum.get() == 0d ? 100d : chanceSum.get()));
+				final LetterCollectorManager lcm = LetterCollectorManager.getInstance();
+				lcm.addWords(id, word);
+				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards, chanceSum.get() == 0d ? 100d : chanceSum.get()));
 				lcm.setLetters(letters);
 				lcm.setMinLevel(minimumLevel.get());
 				lcm.setMaxLevel(maximumLevel.get());
diff --git a/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml b/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml
index fb0bdb5a6b..454394dea9 100644
--- a/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml
+++ b/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml
@@ -1,19 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <event name="Letter Collector" active="30 06 2021-29 07 2021" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../xsd/eventConfig.xsd">
 	<droplist>
-		<add item="3875" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's A -->
-		<add item="3877" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's E -->
-		<add item="3879" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's G -->
-		<add item="3881" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's I -->
-		<add item="3882" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's L -->
-		<add item="3883" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's N -->
-		<add item="3884" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's O -->
-		<add item="3886" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's T -->
-		<add item="3880" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's H -->
-		<add item="3888" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's II -->
-		<add item="22894" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's W -->
-		<add item="29545" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's D -->
-		<add item="29825" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's P -->
+		<add item="82099" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's A -->
+		<add item="82098" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's E -->
+		<add item="82100" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's G -->
+		<add item="82096" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's I -->
+		<add item="82095" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's L -->
+		<add item="82097" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's N -->
+		<add item="82105" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's O -->
+		<add item="82104" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's T -->
+		<add item="82106" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's H -->
+		<add item="82101" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's II -->
+		<add item="82102" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's W -->
+		<add item="82103" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's D -->
+		<add item="82107" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's P -->
+		<add item="80012" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter - K -->
 	</droplist>
 	<messages>
 		<add type="onEnd" text="Letter Collector: Event end!" />
diff --git a/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml b/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml
index 5069a9668e..fb454cc28c 100644
--- a/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml
+++ b/L2J_Mobius_10.1_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml
@@ -6,19 +6,20 @@
 	</params>
 	<letters>
 		<!-- name of letter, for using down / id of this letter -->
-		<item name="A" id="3875" />
-		<item name="E" id="3877" />
-		<item name="G" id="3879" />
-		<item name="I" id="3881" />
-		<item name="L" id="3882" />
-		<item name="N" id="3883" />
-		<item name="O" id="3884" />
-		<item name="T" id="3886" />
-		<item name="H" id="3880" />
-		<item name="II" id="3888" />
-		<item name="W" id="22894" />
-		<item name="D" id="29545" />
-		<item name="P" id="29825" />
+		<item name="A" id="82099" />
+		<item name="E" id="82098" />
+		<item name="G" id="82100" />
+		<item name="I" id="82096" />
+		<item name="L" id="82095" />
+		<item name="N" id="82097" />
+		<item name="O" id="82105" />
+		<item name="T" id="82104" />
+		<item name="H" id="82106" />
+		<item name="II" id="82101" />
+		<item name="W" id="82102" />
+		<item name="D" id="82103" />
+		<item name="P" id="82107" />
+		<item name="K" id="80012" />
 	</letters>
 	<!-- client id -->
 	<reward id="0">
@@ -62,7 +63,7 @@
 		</rewards>
 	</reward>
 	<reward id="1">
-		<word>D;E;A;T;H</word> <!-- DEATH -->
+		<word>N;E;W;L;E;G;E;N;D</word> <!-- NEW LEGEND -->
 		<rewards sumChances="true">
 			<item id="47821" count="1" chance="5" /> <!-- Sayha's Talisman Lv. 10 -->
 			<item id="47820" count="1" chance="5" /> <!-- Sayha's Talisman Lv. 9 -->
@@ -91,7 +92,7 @@
 		</rewards>
 	</reward>
 	<reward id="2">
-		<word>K;N;I;G;H;T</word> <!-- KNIGHT -->
+		<word>T;O;T;H;E;T;O;P</word> <!-- TO THE TOP -->
 		<rewards sumChances="true">
 			<item id="80416" count="1" chance="5" /> <!-- Fortune Box of 10 Billion Adena -->
 			<item id="28448" count="1" chance="5" /> <!-- Sayha's Talisman Lv. 7 -->
diff --git a/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82000-82099.xml b/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82000-82099.xml
index e8b401edfb..efb05d21dd 100644
--- a/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82000-82099.xml
+++ b/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82000-82099.xml
@@ -1156,6 +1156,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82096" name="Letter I" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1167,6 +1168,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82097" name="Letter N" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1178,6 +1180,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82098" name="Letter E" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1189,6 +1192,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82099" name="Letter A" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1200,5 +1204,6 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 </list>
diff --git a/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82100-82199.xml b/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82100-82199.xml
index b525780e0e..caed6e0bcf 100644
--- a/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82100-82199.xml
+++ b/L2J_Mobius_10.1_MasterClass/dist/game/data/stats/items/82100-82199.xml
@@ -10,6 +10,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82101" name="Number II" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -21,6 +22,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82102" name="Letter W" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -32,6 +34,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82103" name="Letter D" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -43,6 +46,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82104" name="Letter T" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -54,6 +58,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82105" name="Letter O" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -65,6 +70,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82106" name="Letter H" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -76,6 +82,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82107" name="Letter P" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -87,6 +94,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82108" name="Conquest Leader" additionalName="30-day" type="Armor">
 		<!-- Given only to the Conquest Leader. When equipped, Max HP/ MP/ CP +5%, weight limit +25,600, damage +15%, received damage -15%, Damage Reflection Resistance +20%, Fixed Damage Resistance +20%, Critical Damage -20%, inventory slots +36, Attribute Resistance +50. -->
diff --git a/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java b/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
index a181a33a0f..ca5bac9228 100644
--- a/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
+++ b/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
@@ -88,26 +88,26 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 			forEach(listNode, "reward", rewardNode ->
 			{
 				final int id = new StatSet(parseAttributes(rewardNode)).getInt("id");
-				final AtomicReference<List<ItemHolder>> word = new AtomicReference<>(new ArrayList<>());
-				final AtomicReference<List<ItemChanceHolder>> rewards = new AtomicReference<>(new ArrayList<>());
-				AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
-				AtomicReference<Double> chanceSum = new AtomicReference<>(0.0);
+				final List<ItemHolder> word = new ArrayList<>();
+				final List<ItemChanceHolder> rewards = new ArrayList<>();
+				final AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
+				final AtomicReference<Double> chanceSum = new AtomicReference<>(0d);
 				forEach(rewardNode, "word", wordNode ->
 				{
 					String[] letter = wordNode.getTextContent().trim().split(";");
 					for (String token : letter)
 					{
 						int count = 1;
-						for (ItemHolder check : word.get())
+						for (ItemHolder check : word)
 						{
 							if (check.getId() == letters.get(token))
 							{
 								count = Math.toIntExact(check.getCount() + 1);
-								word.get().remove(check);
+								word.remove(check);
 								break;
 							}
 						}
-						word.get().add(new ItemHolder(letters.get(token), count));
+						word.add(new ItemHolder(letters.get(token), count));
 					}
 				});
 				forEach(rewardNode, "rewards", rewardsNode ->
@@ -121,12 +121,12 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 						{
 							chanceSum.set(chanceSum.get() + chance);
 						}
-						rewards.get().add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
+						rewards.add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
 					});
 				});
-				LetterCollectorManager lcm = LetterCollectorManager.getInstance();
-				lcm.addWords(id, word.get());
-				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards.get(), chanceSum.get() == 0d ? 100d : chanceSum.get()));
+				final LetterCollectorManager lcm = LetterCollectorManager.getInstance();
+				lcm.addWords(id, word);
+				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards, chanceSum.get() == 0d ? 100d : chanceSum.get()));
 				lcm.setLetters(letters);
 				lcm.setMinLevel(minimumLevel.get());
 				lcm.setMaxLevel(maximumLevel.get());
diff --git a/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml b/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml
index fb0bdb5a6b..96e293ddd8 100644
--- a/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml
+++ b/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/config.xml
@@ -14,6 +14,7 @@
 		<add item="22894" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's W -->
 		<add item="29545" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's D -->
 		<add item="29825" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter Collector's P -->
+		<add item="80012" min="1" max="1" chance="1%" minLevel="95" /> <!-- Letter - K -->
 	</droplist>
 	<messages>
 		<add type="onEnd" text="Letter Collector: Event end!" />
diff --git a/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml b/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml
index becbe65c1c..8919104106 100644
--- a/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml
+++ b/L2J_Mobius_10.2_MasterClass/dist/game/data/scripts/events/LetterCollector/rewards.xml
@@ -19,6 +19,7 @@
 		<item name="W" id="22894" />
 		<item name="D" id="29545" />
 		<item name="P" id="29825" />
+		<item name="K" id="80012" />
 	</letters>
 	<!-- client id -->
 	<reward id="0">
diff --git a/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82000-82099.xml b/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82000-82099.xml
index 63c0860ac6..9d90e67b66 100644
--- a/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82000-82099.xml
+++ b/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82000-82099.xml
@@ -1157,6 +1157,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82096" name="Letter I" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1168,6 +1169,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82097" name="Letter N" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1179,6 +1181,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82098" name="Letter E" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1190,6 +1193,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82099" name="Letter A" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -1201,5 +1205,6 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 </list>
diff --git a/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82100-82199.xml b/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82100-82199.xml
index 5890777105..c525339e96 100644
--- a/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82100-82199.xml
+++ b/L2J_Mobius_10.2_MasterClass/dist/game/data/stats/items/82100-82199.xml
@@ -10,6 +10,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82101" name="Number II" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -21,6 +22,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82102" name="Letter W" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -32,6 +34,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82103" name="Letter D" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -43,6 +46,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82104" name="Letter T" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -54,6 +58,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82105" name="Letter O" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -65,6 +70,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82106" name="Letter H" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -76,6 +82,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82107" name="Letter P" additionalName="Event" type="EtcItem">
 		<!-- A letter that can be obtained while hunting monsters on the continent. If you collect a word from such letters, you'll be able to participate in the event and get useful items. -->
@@ -87,6 +94,7 @@
 		<set name="is_tradable" val="false" />
 		<set name="is_dropable" val="false" />
 		<set name="is_sellable" val="false" />
+		<set name="is_stackable" val="true" />
 	</item>
 	<item id="82108" name="Conquest Leader" additionalName="30-day" type="Armor">
 		<!-- Given only to the Conquest Leader. When equipped, Max HP/ MP/ CP +5%, weight limit +25,600, damage +15%, received damage -15%, Damage Reflection Resistance +20%, Fixed Damage Resistance +20%, Critical Damage -20%, inventory slots +36, Attribute Resistance +50. -->
diff --git a/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/scripts/events/LetterCollector/LetterCollector.java b/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
index a181a33a0f..ca5bac9228 100644
--- a/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
+++ b/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
@@ -88,26 +88,26 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 			forEach(listNode, "reward", rewardNode ->
 			{
 				final int id = new StatSet(parseAttributes(rewardNode)).getInt("id");
-				final AtomicReference<List<ItemHolder>> word = new AtomicReference<>(new ArrayList<>());
-				final AtomicReference<List<ItemChanceHolder>> rewards = new AtomicReference<>(new ArrayList<>());
-				AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
-				AtomicReference<Double> chanceSum = new AtomicReference<>(0.0);
+				final List<ItemHolder> word = new ArrayList<>();
+				final List<ItemChanceHolder> rewards = new ArrayList<>();
+				final AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
+				final AtomicReference<Double> chanceSum = new AtomicReference<>(0d);
 				forEach(rewardNode, "word", wordNode ->
 				{
 					String[] letter = wordNode.getTextContent().trim().split(";");
 					for (String token : letter)
 					{
 						int count = 1;
-						for (ItemHolder check : word.get())
+						for (ItemHolder check : word)
 						{
 							if (check.getId() == letters.get(token))
 							{
 								count = Math.toIntExact(check.getCount() + 1);
-								word.get().remove(check);
+								word.remove(check);
 								break;
 							}
 						}
-						word.get().add(new ItemHolder(letters.get(token), count));
+						word.add(new ItemHolder(letters.get(token), count));
 					}
 				});
 				forEach(rewardNode, "rewards", rewardsNode ->
@@ -121,12 +121,12 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 						{
 							chanceSum.set(chanceSum.get() + chance);
 						}
-						rewards.get().add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
+						rewards.add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
 					});
 				});
-				LetterCollectorManager lcm = LetterCollectorManager.getInstance();
-				lcm.addWords(id, word.get());
-				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards.get(), chanceSum.get() == 0d ? 100d : chanceSum.get()));
+				final LetterCollectorManager lcm = LetterCollectorManager.getInstance();
+				lcm.addWords(id, word);
+				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards, chanceSum.get() == 0d ? 100d : chanceSum.get()));
 				lcm.setLetters(letters);
 				lcm.setMinLevel(minimumLevel.get());
 				lcm.setMaxLevel(maximumLevel.get());
diff --git a/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/scripts/events/LetterCollector/LetterCollector.java b/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
index a181a33a0f..ca5bac9228 100644
--- a/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
+++ b/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
@@ -88,26 +88,26 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 			forEach(listNode, "reward", rewardNode ->
 			{
 				final int id = new StatSet(parseAttributes(rewardNode)).getInt("id");
-				final AtomicReference<List<ItemHolder>> word = new AtomicReference<>(new ArrayList<>());
-				final AtomicReference<List<ItemChanceHolder>> rewards = new AtomicReference<>(new ArrayList<>());
-				AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
-				AtomicReference<Double> chanceSum = new AtomicReference<>(0.0);
+				final List<ItemHolder> word = new ArrayList<>();
+				final List<ItemChanceHolder> rewards = new ArrayList<>();
+				final AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
+				final AtomicReference<Double> chanceSum = new AtomicReference<>(0d);
 				forEach(rewardNode, "word", wordNode ->
 				{
 					String[] letter = wordNode.getTextContent().trim().split(";");
 					for (String token : letter)
 					{
 						int count = 1;
-						for (ItemHolder check : word.get())
+						for (ItemHolder check : word)
 						{
 							if (check.getId() == letters.get(token))
 							{
 								count = Math.toIntExact(check.getCount() + 1);
-								word.get().remove(check);
+								word.remove(check);
 								break;
 							}
 						}
-						word.get().add(new ItemHolder(letters.get(token), count));
+						word.add(new ItemHolder(letters.get(token), count));
 					}
 				});
 				forEach(rewardNode, "rewards", rewardsNode ->
@@ -121,12 +121,12 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 						{
 							chanceSum.set(chanceSum.get() + chance);
 						}
-						rewards.get().add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
+						rewards.add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
 					});
 				});
-				LetterCollectorManager lcm = LetterCollectorManager.getInstance();
-				lcm.addWords(id, word.get());
-				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards.get(), chanceSum.get() == 0d ? 100d : chanceSum.get()));
+				final LetterCollectorManager lcm = LetterCollectorManager.getInstance();
+				lcm.addWords(id, word);
+				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards, chanceSum.get() == 0d ? 100d : chanceSum.get()));
 				lcm.setLetters(letters);
 				lcm.setMinLevel(minimumLevel.get());
 				lcm.setMaxLevel(maximumLevel.get());
diff --git a/L2J_Mobius_Essence_6.1_BattleChronicle/dist/game/data/scripts/events/LetterCollector/LetterCollector.java b/L2J_Mobius_Essence_6.1_BattleChronicle/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
index a181a33a0f..ca5bac9228 100644
--- a/L2J_Mobius_Essence_6.1_BattleChronicle/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
+++ b/L2J_Mobius_Essence_6.1_BattleChronicle/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
@@ -88,26 +88,26 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 			forEach(listNode, "reward", rewardNode ->
 			{
 				final int id = new StatSet(parseAttributes(rewardNode)).getInt("id");
-				final AtomicReference<List<ItemHolder>> word = new AtomicReference<>(new ArrayList<>());
-				final AtomicReference<List<ItemChanceHolder>> rewards = new AtomicReference<>(new ArrayList<>());
-				AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
-				AtomicReference<Double> chanceSum = new AtomicReference<>(0.0);
+				final List<ItemHolder> word = new ArrayList<>();
+				final List<ItemChanceHolder> rewards = new ArrayList<>();
+				final AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
+				final AtomicReference<Double> chanceSum = new AtomicReference<>(0d);
 				forEach(rewardNode, "word", wordNode ->
 				{
 					String[] letter = wordNode.getTextContent().trim().split(";");
 					for (String token : letter)
 					{
 						int count = 1;
-						for (ItemHolder check : word.get())
+						for (ItemHolder check : word)
 						{
 							if (check.getId() == letters.get(token))
 							{
 								count = Math.toIntExact(check.getCount() + 1);
-								word.get().remove(check);
+								word.remove(check);
 								break;
 							}
 						}
-						word.get().add(new ItemHolder(letters.get(token), count));
+						word.add(new ItemHolder(letters.get(token), count));
 					}
 				});
 				forEach(rewardNode, "rewards", rewardsNode ->
@@ -121,12 +121,12 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 						{
 							chanceSum.set(chanceSum.get() + chance);
 						}
-						rewards.get().add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
+						rewards.add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
 					});
 				});
-				LetterCollectorManager lcm = LetterCollectorManager.getInstance();
-				lcm.addWords(id, word.get());
-				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards.get(), chanceSum.get() == 0d ? 100d : chanceSum.get()));
+				final LetterCollectorManager lcm = LetterCollectorManager.getInstance();
+				lcm.addWords(id, word);
+				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards, chanceSum.get() == 0d ? 100d : chanceSum.get()));
 				lcm.setLetters(letters);
 				lcm.setMinLevel(minimumLevel.get());
 				lcm.setMaxLevel(maximumLevel.get());
diff --git a/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/scripts/events/LetterCollector/LetterCollector.java b/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
index a181a33a0f..ca5bac9228 100644
--- a/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
+++ b/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/scripts/events/LetterCollector/LetterCollector.java
@@ -88,26 +88,26 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 			forEach(listNode, "reward", rewardNode ->
 			{
 				final int id = new StatSet(parseAttributes(rewardNode)).getInt("id");
-				final AtomicReference<List<ItemHolder>> word = new AtomicReference<>(new ArrayList<>());
-				final AtomicReference<List<ItemChanceHolder>> rewards = new AtomicReference<>(new ArrayList<>());
-				AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
-				AtomicReference<Double> chanceSum = new AtomicReference<>(0.0);
+				final List<ItemHolder> word = new ArrayList<>();
+				final List<ItemChanceHolder> rewards = new ArrayList<>();
+				final AtomicBoolean needToSumAllChance = new AtomicBoolean(false);
+				final AtomicReference<Double> chanceSum = new AtomicReference<>(0d);
 				forEach(rewardNode, "word", wordNode ->
 				{
 					String[] letter = wordNode.getTextContent().trim().split(";");
 					for (String token : letter)
 					{
 						int count = 1;
-						for (ItemHolder check : word.get())
+						for (ItemHolder check : word)
 						{
 							if (check.getId() == letters.get(token))
 							{
 								count = Math.toIntExact(check.getCount() + 1);
-								word.get().remove(check);
+								word.remove(check);
 								break;
 							}
 						}
-						word.get().add(new ItemHolder(letters.get(token), count));
+						word.add(new ItemHolder(letters.get(token), count));
 					}
 				});
 				forEach(rewardNode, "rewards", rewardsNode ->
@@ -121,12 +121,12 @@ public class LetterCollector extends LongTimeEvent implements IXmlReader
 						{
 							chanceSum.set(chanceSum.get() + chance);
 						}
-						rewards.get().add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
+						rewards.add(new ItemChanceHolder(itemSet.getInt("id"), chance, itemSet.getLong("count"), (byte) itemSet.getInt("enchantLevel", 0)));
 					});
 				});
-				LetterCollectorManager lcm = LetterCollectorManager.getInstance();
-				lcm.addWords(id, word.get());
-				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards.get(), chanceSum.get() == 0d ? 100d : chanceSum.get()));
+				final LetterCollectorManager lcm = LetterCollectorManager.getInstance();
+				lcm.addWords(id, word);
+				lcm.addRewards(id, new LetterCollectorManager.LetterCollectorRewardHolder(rewards, chanceSum.get() == 0d ? 100d : chanceSum.get()));
 				lcm.setLetters(letters);
 				lcm.setMinLevel(minimumLevel.get());
 				lcm.setMaxLevel(maximumLevel.get());