diff --git a/server/gameserver/skill.cc b/server/gameserver/skill.cc
index 044002af..89f72444 100644
--- a/server/gameserver/skill.cc
+++ b/server/gameserver/skill.cc
@@ -25,6 +25,7 @@
 #include "mt/Skill.h"
 #include "mt/SkillNumber.h"
 #include "mt/Equip.h"
+#include "mt/MergeItem.h"
 
 static int GetTraceTargetId(Creature* c)
 {
@@ -504,7 +505,26 @@ void Skill::Active()
     NotifySkillState();
 }
 
+void Skill::Clear()
+{
+    for (int buff_uniid : hold_buffs_) {
+        owner->RemoveBuffByUniId(buff_uniid);
+    }
+    hold_buffs_.clear();
+}
+
 void Skill::LevelUp()
 {
-
+    if (owner->GetInventory(IS_BLUE_STONE) % 3 == 0) {
+        Clear();
+        auto merge_item_meta = mt::MergeItem::GetById(mt::Equip::BLUE_STONE_ID);
+        if (merge_item_meta) {
+            std::set<int>* buffs = merge_item_meta->GetBuffs(owner->GetInventory(IS_BLUE_STONE));
+            if (buffs) {
+                for (int buff_id : *buffs) {
+                    hold_buffs_.push_back(owner->TryAddBuff(owner, buff_id, nullptr));
+                }
+            }
+        }
+    }
 }
diff --git a/server/gameserver/skill.h b/server/gameserver/skill.h
index af36f918..be681db4 100644
--- a/server/gameserver/skill.h
+++ b/server/gameserver/skill.h
@@ -49,6 +49,7 @@ class Skill
     void Deactive() { actived_ = false; }
     bool IsMainSkill();
     void LevelUp();
+    void Clear();
 
 private:
     void InitActiveSkill();
@@ -73,6 +74,7 @@ private:
     int minor_cd_time_ = 0;
     long long minor_frameno_ = 0;
     std::function<void(int)> minor_cb_;
+    std::vector<int> hold_buffs_;
 
     friend class PBUtils;
 };