diff --git a/server/gameserver/buff.cc b/server/gameserver/buff.cc
index 29483f0..7214b47 100644
--- a/server/gameserver/buff.cc
+++ b/server/gameserver/buff.cc
@@ -46,17 +46,17 @@ void Buff::FillMFBuff(cs::MFBuff* buff_pb)
     }
 }
 
-void Buff::ProcDelayAddBuff(Creature* caster)
+void Buff::ProcDelayAddBuff()
 {
-    InternalTimerAddBuff(caster);
+    InternalTimerAddBuff();
 }
 
-void Buff::ProcIntervalAddBuff(Creature* caster)
+void Buff::ProcIntervalAddBuff()
 {
-    InternalTimerAddBuff(caster);
+    InternalTimerAddBuff();
 }
 
-void Buff::ProcBatchAddBuff(Creature* caster)
+void Buff::ProcBatchAddBuff()
 {
     for (auto& tuple : meta->batch_add_list) {
         int rand_space = std::get<0>(tuple);
@@ -71,7 +71,7 @@ void Buff::ProcBatchAddBuff(Creature* caster)
             if (rnd < std::get<1>(items[0])){
                 MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(std::get<0>(items[0]));
                 if (buff_meta) {
-                    owner->AddBuff(caster, buff_meta, 1, nullptr);
+                    owner->AddBuff(caster_.Get(), buff_meta, 1, nullptr);
                 }
             }
         } else {
@@ -81,7 +81,7 @@ void Buff::ProcBatchAddBuff(Creature* caster)
                 if (rnd <= std::get<1>(item)) {
                     MetaData::Buff* buff_meta = MetaMgr::Instance()->GetBuff(std::get<0>(item));
                     if (buff_meta) {
-                        owner->AddBuff(caster, buff_meta, 1, nullptr);
+                        owner->AddBuff(caster_.Get(), buff_meta, 1, nullptr);
                     }
                     break;
                 }
@@ -90,9 +90,9 @@ void Buff::ProcBatchAddBuff(Creature* caster)
     }
 }
 
-void Buff::InternalTimerAddBuff(Creature* caster)
+void Buff::InternalTimerAddBuff()
 {
-    if (!caster) {
+    if (!caster_.Get()) {
         return;
     }
     auto timer_func =
@@ -121,13 +121,13 @@ void Buff::InternalTimerAddBuff(Creature* caster)
         };
 
     SkillCasterState* caster_state = new SkillCasterState;
-    caster->FillSkillCasterState(caster_state);
+    caster_.Get()->FillSkillCasterState(caster_state);
 
     a8::XParams param;
     param.SetSender(owner);
     param.SetParam1(caster_state);
     param.SetParam2(meta->i->buff_param2());
-    param.SetParam3(caster->CurrentSkill()  ? caster->CurrentSkill()->meta : nullptr);
+    param.SetParam3(caster_.Get()->CurrentSkill()  ? caster_.Get()->CurrentSkill()->meta : nullptr);
 
     switch (meta->i->buff_effect() ) {
     case kBET_DelayAddBuff:
@@ -159,14 +159,14 @@ void Buff::InternalTimerAddBuff(Creature* caster)
     }
 }
 
-void Buff::ProcSummonHero(Creature* caster)
+void Buff::ProcSummonHero()
 {
-    if (!caster->IsHuman()) {
+    if (!caster_.Get()->IsHuman()) {
         return;
     }
 }
 
-void Buff::ProcBeRecycle(Creature* caster)
+void Buff::ProcBeRecycle()
 {
     owner->room->xtimer.AddRepeatTimerAndAttach
         (
@@ -194,19 +194,19 @@ bool Buff::FreezeOperate()
     return meta->i->buff_effect() == kBET_Become && !hold_weapons_.empty();
 }
 
-void Buff::ProcBecome(Creature* caster)
+void Buff::ProcBecome()
 {
-    hold_curr_weapon_idx_ = caster->GetCurrWeapon()->weapon_idx;
-    if (caster->IsHuman() && meta->param2 > 0.01) {
+    hold_curr_weapon_idx_ = caster_.Get()->GetCurrWeapon()->weapon_idx;
+    if (caster_.Get()->IsHuman() && meta->param2 > 0.01) {
         std::vector<std::string> strings;
         a8::Split(meta->i->buff_param2(), strings, ':');
         for (size_t i = 0; i < strings.size(); ++i) {
             int weapon_id = a8::XValue(strings[i]);
             MetaData::Equip* weapon_meta = MetaMgr::Instance()->GetEquip(weapon_id);
-            if (weapon_meta && i < caster->weapons.size()) {
+            if (weapon_meta && i < caster_.Get()->weapons.size()) {
                 int weapon_idx = weapon_meta->GetWeaponIdx();
-                if (weapon_idx >= 0 && weapon_idx < caster->weapons.size()) {
-                    Weapon* weapon = &caster->weapons[weapon_idx];
+                if (weapon_idx >= 0 && weapon_idx < caster_.Get()->weapons.size()) {
+                    Weapon* weapon = &caster_.Get()->weapons[weapon_idx];
                     hold_weapons_.push_back(*weapon);
 
                     weapon->weapon_id = weapon_meta->i->id();
@@ -215,26 +215,26 @@ void Buff::ProcBecome(Creature* caster)
                     weapon->Recalc();
                     weapon->ammo = weapon->GetClipVolume();
                     if (i == 0) {
-                        caster->SetCurrWeapon(weapon);
+                        caster_.Get()->SetCurrWeapon(weapon);
                     }
                 }
             }
         }
-        caster->need_sync_active_player = true;
-        caster->SyncAroundPlayers(__FILE__, __LINE__, __func__);
+        caster_.Get()->need_sync_active_player = true;
+        caster_.Get()->SyncAroundPlayers(__FILE__, __LINE__, __func__);
     }
 }
 
-void Buff::ProcRemoveBecome(Creature* caster)
+void Buff::ProcRemoveBecome()
 {
-    RecoverHoldWeapons(caster);
+    RecoverHoldWeapons();
 }
 
-void Buff::ProcDriver(Creature* caster)
+void Buff::ProcDriver()
 {
-    hold_curr_weapon_idx_ = caster->GetCurrWeapon()->weapon_idx;
-    if (caster->IsHuman()) {
-        Human* hum = (Human*)caster;
+    hold_curr_weapon_idx_ = caster_.Get()->GetCurrWeapon()->weapon_idx;
+    if (caster_.Get()->IsHuman()) {
+        Human* hum = (Human*)caster_.Get();
         if (hum->GetCar() && hum->GetCar()->GetCurrWeapon()) {
             hold_weapons_.push_back(hum->weapons[hum->GetCar()->GetCurrWeapon()->weapon_idx]);
             hum->weapons[hum->GetCar()->GetCurrWeapon()->weapon_idx] = *hum->GetCar()->GetCurrWeapon();
@@ -247,21 +247,21 @@ void Buff::ProcDriver(Creature* caster)
             }
         }
     }
-    caster->need_sync_active_player = true;
-    caster->SyncAroundPlayers(__FILE__, __LINE__, __func__);
+    caster_.Get()->need_sync_active_player = true;
+    caster_.Get()->SyncAroundPlayers(__FILE__, __LINE__, __func__);
 }
 
-void Buff::ProcRemoveDriver(Creature* caster)
+void Buff::ProcRemoveDriver()
 {
-    RecoverHoldWeapons(caster);
-    caster->shoot_offset = a8::Vec2();
+    RecoverHoldWeapons();
+    caster_.Get()->shoot_offset = a8::Vec2();
 }
 
-void Buff::ProcPassenger(Creature* caster)
+void Buff::ProcPassenger()
 {
-    hold_curr_weapon_idx_ = caster->GetCurrWeapon()->weapon_idx;
-    if (caster->IsHuman()) {
-        Human* hum = (Human*)caster;
+    hold_curr_weapon_idx_ = caster_.Get()->GetCurrWeapon()->weapon_idx;
+    if (caster_.Get()->IsHuman()) {
+        Human* hum = (Human*)caster_.Get();
         if (hum->GetCar() && hum->GetCar()->GetCurrWeapon()) {
             hold_weapons_.push_back(hum->weapons[hum->GetCar()->GetCurrWeapon()->weapon_idx]);
             hum->weapons[hum->GetCar()->GetCurrWeapon()->weapon_idx] = *hum->GetCar()->GetCurrWeapon();
@@ -274,46 +274,46 @@ void Buff::ProcPassenger(Creature* caster)
             }
         }
     }
-    caster->need_sync_active_player = true;
-    caster->SyncAroundPlayers(__FILE__, __LINE__, __func__);
+    caster_.Get()->need_sync_active_player = true;
+    caster_.Get()->SyncAroundPlayers(__FILE__, __LINE__, __func__);
 }
 
-void Buff::ProcRemovePassenger(Creature* caster)
+void Buff::ProcRemovePassenger()
 {
-    RecoverHoldWeapons(caster);
-    caster->shoot_offset = a8::Vec2();
+    RecoverHoldWeapons();
+    caster_.Get()->shoot_offset = a8::Vec2();
 }
 
-void Buff::RecoverHoldWeapons(Creature* caster)
+void Buff::RecoverHoldWeapons()
 {
     for (auto& weapon : hold_weapons_) {
         if (weapon.weapon_idx >= 0 &&
-            weapon.weapon_idx < caster->weapons.size()) {
-            caster->weapons[weapon.weapon_idx] = weapon;
+            weapon.weapon_idx < caster_.Get()->weapons.size()) {
+            caster_.Get()->weapons[weapon.weapon_idx] = weapon;
         }
     }
     if (hold_curr_weapon_idx_ >=0 &&
-        hold_curr_weapon_idx_ <= caster->weapons.size() &&
-        caster->weapons[hold_curr_weapon_idx_].weapon_id != 0) {
-        Weapon* next_weapon = &caster->weapons[hold_curr_weapon_idx_];
-        caster->SetCurrWeapon(next_weapon);
+        hold_curr_weapon_idx_ <= caster_.Get()->weapons.size() &&
+        caster_.Get()->weapons[hold_curr_weapon_idx_].weapon_id != 0) {
+        Weapon* next_weapon = &caster_.Get()->weapons[hold_curr_weapon_idx_];
+        caster_.Get()->SetCurrWeapon(next_weapon);
     } else {
         if (!hold_weapons_.empty()) {
-            Weapon* next_weapon = caster->AutoChgWeapon();
+            Weapon* next_weapon = caster_.Get()->AutoChgWeapon();
             if (next_weapon) {
-                caster->SetCurrWeapon(next_weapon);
+                caster_.Get()->SetCurrWeapon(next_weapon);
             }
         }
     }
     hold_weapons_.clear();
-    caster->need_sync_active_player = true;
-    caster->SyncAroundPlayers(__FILE__, __LINE__, __func__);
+    caster_.Get()->need_sync_active_player = true;
+    caster_.Get()->SyncAroundPlayers(__FILE__, __LINE__, __func__);
 }
 
-void Buff::ProcSprint(Creature* caster)
+void Buff::ProcSprint()
 {
-    if (caster->IsPlayer()) {
-        Player* hum = (Player*)caster;
+    if (caster_.Get()->IsPlayer()) {
+        Player* hum = (Player*)caster_.Get();
         std::set<int>* hited_objects = new std::set<int>;
         owner->room->xtimer.AddRepeatTimerAndAttach
             (
@@ -345,7 +345,7 @@ void Buff::ProcSprint(Creature* caster)
     }
 }
 
-void Buff::ProcSeletTargetWithSelfPos(Creature* caster)
+void Buff::ProcSeletTargetWithSelfPos()
 {
     std::vector<Creature*> targets;
     owner->TraverseCreatures
@@ -402,12 +402,12 @@ void Buff::ProcSeletTargetWithSelfPos(Creature* caster)
          );
     for (auto& target : targets) {
         for (int buff_id : meta->param2_int_list) {
-            target->TryAddBuff(caster, buff_id);
+            target->TryAddBuff(caster_.Get(), buff_id);
         }
     }
 }
 
-void Buff::ProcTurnOver(Creature* caster)
+void Buff::ProcTurnOver()
 {
     Skill* skill = owner->CurrentSkill();
     if (!skill) {
@@ -491,3 +491,8 @@ void Buff::ProcPullToWalkable()
         owner->FindLocation();
     }
 }
+
+void Buff::ProcCondAddBuff()
+{
+
+}
diff --git a/server/gameserver/buff.h b/server/gameserver/buff.h
index 0794c49..6a9c60d 100644
--- a/server/gameserver/buff.h
+++ b/server/gameserver/buff.h
@@ -41,25 +41,26 @@ class Buff
     CreatureWeakPtr& GetCaster();
     void SetCaster(Creature* caster);
 
-    void ProcDelayAddBuff(Creature* caster);
-    void ProcIntervalAddBuff(Creature* caster);
-    void ProcBatchAddBuff(Creature* caster);
-    void ProcSummonHero(Creature* caster);
-    void ProcBeRecycle(Creature* caster);
-    void ProcBecome(Creature* caster);
-    void ProcRemoveBecome(Creature* caster);
-    void ProcDriver(Creature* caster);
-    void ProcRemoveDriver(Creature* caster);
-    void ProcPassenger(Creature* caster);
-    void ProcRemovePassenger(Creature* caster);
-    void ProcSprint(Creature* caster);
-    void ProcSeletTargetWithSelfPos(Creature* caster);
-    void ProcTurnOver(Creature* caster);
+    void ProcDelayAddBuff();
+    void ProcIntervalAddBuff();
+    void ProcBatchAddBuff();
+    void ProcSummonHero();
+    void ProcBeRecycle();
+    void ProcBecome();
+    void ProcRemoveBecome();
+    void ProcDriver();
+    void ProcRemoveDriver();
+    void ProcPassenger();
+    void ProcRemovePassenger();
+    void ProcSprint();
+    void ProcSeletTargetWithSelfPos();
+    void ProcTurnOver();
     void ProcPullToWalkable();
+    void ProcCondAddBuff();
 
 private:
-    void InternalTimerAddBuff(Creature* caster);
-    void RecoverHoldWeapons(Creature* caster);
+    void InternalTimerAddBuff();
+    void RecoverHoldWeapons();
 
 private:
     int hold_curr_weapon_idx_ = 0;
diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 98d5a5a..9567693 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -796,7 +796,7 @@ void Creature::ProcBuffEffect(Creature* caster, Buff* buff)
         break;
     case kBET_TurnOver:
         {
-            buff->ProcTurnOver(caster);
+            buff->ProcTurnOver();
         }
         break;
     case kBET_Camouflage:
@@ -909,12 +909,12 @@ void Creature::ProcBuffEffect(Creature* caster, Buff* buff)
         break;
     case kBET_DelayAddBuff:
         {
-            buff->ProcDelayAddBuff(caster);
+            buff->ProcDelayAddBuff();
         }
         break;
     case kBET_IntervalAddBuff:
         {
-            buff->ProcIntervalAddBuff(caster);
+            buff->ProcIntervalAddBuff();
         }
         break;
     case kBET_OnceAddHp:
@@ -948,7 +948,7 @@ void Creature::ProcBuffEffect(Creature* caster, Buff* buff)
         break;
     case kBET_Sprint:
         {
-            buff->ProcSprint(caster);
+            buff->ProcSprint();
         }
         break;
     case kBET_FlashMove:
@@ -965,32 +965,32 @@ void Creature::ProcBuffEffect(Creature* caster, Buff* buff)
         break;
     case kBET_BatchAddBuff:
         {
-            buff->ProcBatchAddBuff(caster);
+            buff->ProcBatchAddBuff();
         }
         break;
     case kBET_BeRecycle:
         {
-            buff->ProcBeRecycle(caster);
+            buff->ProcBeRecycle();
         }
         break;
     case kBET_Become:
         {
-            buff->ProcBecome(caster);
+            buff->ProcBecome();
         }
         break;
     case kBET_SelectTargetWithSelfPos:
         {
-            buff->ProcSeletTargetWithSelfPos(caster);
+            buff->ProcSeletTargetWithSelfPos();
         }
         break;
     case kBET_Driver:
         {
-            buff->ProcDriver(caster);
+            buff->ProcDriver();
         }
         break;
     case kBET_Passenger:
         {
-            buff->ProcPassenger(caster);
+            buff->ProcPassenger();
         }
         break;
     case kBET_PullToWalkable:
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 064427e..c10a494 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -3127,17 +3127,17 @@ void Human::OnBuffRemove(Buff& buff)
         break;
     case kBET_Become:
         {
-            buff.ProcRemoveBecome(this);
+            buff.ProcRemoveBecome();
         }
         break;
     case kBET_Driver:
         {
-            buff.ProcRemoveDriver(this);
+            buff.ProcRemoveDriver();
         }
         break;
     case kBET_Passenger:
         {
-            buff.ProcRemovePassenger(this);
+            buff.ProcRemovePassenger();
         }
         break;
     default: