diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index db5c01d..a25b5bb 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -2191,8 +2191,8 @@ void Creature::RemoveSurplusHero(int buff_id, int id, int num)
                 matched_heros.push_back(std::get<1>(itr));
             }
         }
-        while (matched_heros.size() >= num) {
-            matched_heros[0]->DetachFromMaster();
+        while (matched_heros.size() > num) {
+            matched_heros[0]->Destory();
             matched_heros.erase(matched_heros.begin());
         }
     }
@@ -2208,8 +2208,8 @@ void Creature::RemoveSurplusObstacle(int buff_id, int id, int num)
                 matched_things.push_back(std::get<1>(itr));
             }
         }
-        while (matched_things.size() >= num) {
-            matched_things[0]->DetachFromMaster();
+        while (matched_things.size() > num) {
+            matched_things[0]->Destory();
             matched_things.erase(matched_things.begin());
         }
     }
diff --git a/server/gameserver/hero.cc b/server/gameserver/hero.cc
index 3f2a59a..b709a97 100644
--- a/server/gameserver/hero.cc
+++ b/server/gameserver/hero.cc
@@ -344,6 +344,40 @@ void Hero::InitAI()
 void Hero::OnBattleStart(Room* room)
 {
     if (master.Get()) {
-
+        Destory();
     }
 }
+
+void Hero::Destory()
+{
+    #if DEBUG
+    room->BroadcastDebugMsg(a8::Format("hero destory uniid:%d pos:%d,%d",
+                            {
+                             GetUniId(),
+                             GetPos().x,
+                             GetPos().y
+                            }));
+    #endif
+    room->xtimer.AddDeadLineTimerAndAttach
+        (
+         0,
+         a8::XParams()
+         .SetSender(this),
+         [] (const a8::XParams& param)
+         {
+             Hero* hero = (Hero*)param.sender.GetUserData();
+             if (hero->delete_frameno == 0) {
+                 hero->BroadcastDeleteState(hero->room);
+                 hero->RemoveFromAroundPlayers(hero->room);
+                 hero->room->grid_service->RemoveCreature(hero);
+                 hero->room->RemoveObjectLater(hero);
+                 hero->delete_frameno = hero->room->GetFrameNo();
+                 std::vector<Human*> watch_list;
+                 hero->room->GetPartObjectWatchList(hero, watch_list);
+                 if (!watch_list.empty()) {
+                     abort();
+                 }
+             }
+         },
+         &xtimer_attacher.timer_list_);
+}
diff --git a/server/gameserver/hero.h b/server/gameserver/hero.h
index f8d80fb..190c991 100644
--- a/server/gameserver/hero.h
+++ b/server/gameserver/hero.h
@@ -39,7 +39,7 @@ public:
     virtual void OnAddToTargetPartObject(Entity* target) override;
     virtual void OnRemoveFromTargetPartObject(Entity* target) override;
     virtual void OnBattleStart(Room* room) override;
-    void DetachFromMaster();
+    void Destory();
 
 protected:
     virtual void _UpdateMove(int speed) override;
@@ -47,6 +47,7 @@ protected:
     virtual void RecalcSelfCollider() override;
     void BeKill(int killer_id, const std::string& killer_name, int weapon_id);
     void InitAI();
+    void DetachFromMaster();
 
 private:
     bool later_removed_ = false;
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index f384d8e..e5804c6 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -19,6 +19,7 @@
 #include "playermgr.h"
 #include "perfmonitor.h"
 #include "jsondatamgr.h"
+#include "skill.h"
 
 const int kREVIVE_BUFF_ID = 1005;
 
@@ -1244,6 +1245,12 @@ void Player::_CMExecCommand(f8::MsgHdr& hdr, const cs::CMExecCommand& msg)
         SendDebugMsg(a8::Format("attr_id:%d abs_val:%f rate_val:%f", {attr_id, abs_val, rate_val}));
     } else if (cmd == "bufflist") {
         SendDebugMsg(DebugOutBuffList());
+    } else if (cmd == "reset_skill" && cmds.size() >= 2) {
+        int skill_id = a8::XValue(cmds[1]);
+        Skill* skill = GetSkill(skill_id);
+        if (skill) {
+            skill->Accelerate(-10000000);
+        }
     }
 }
 
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index e752554..fd9b403 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -2422,7 +2422,7 @@ ObstacleData* Room::GetPermanentObstacleData(int obstacle_uniid)
 long long Room::GetGasInactiveTime()
 {
 #ifdef DEBUG
-    return f8::IsOnlineEnv() ? 10 : 10;
+    return f8::IsOnlineEnv() ? 10 : 50;
 #endif
     if (room_mode_ == kZombieMode) {
         #if DEBUG
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index 3cb51f1..42f320a 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -508,7 +508,7 @@ void RoomObstacle::ActiveKeepRangeBuff()
          [] (const a8::XParams& param)
          {
              RoomObstacle* obstacle = (RoomObstacle*)param.sender.GetUserData();
-             obstacle->DetachFromMaster();
+             obstacle->Destory();
          },
          &xtimer_attacher.timer_list_
          );
@@ -578,6 +578,11 @@ RoomObstacleWeakPtr& RoomObstacle::GetWeakPtrRef()
 void RoomObstacle::OnBattleStart(Room* room)
 {
     if (master.Get()) {
-
+        Destory();
     }
 }
+
+void RoomObstacle::Destory()
+{
+
+}
diff --git a/server/gameserver/roomobstacle.h b/server/gameserver/roomobstacle.h
index 51af798..20863ad 100644
--- a/server/gameserver/roomobstacle.h
+++ b/server/gameserver/roomobstacle.h
@@ -27,13 +27,13 @@ class RoomObstacle : public Obstacle
     void ActiveTimerFunc();
     void UpdateTimerFunc();
     void Active();
-    void DetachFromMaster();
     virtual void Die(Room* room) override;
     Entity* GetRealObject(Room* room);
 
     RoomObstacleWeakPtrChunk* GetWeakPtrChunk() { return &weak_ptr_chunk_; };
     RoomObstacleWeakPtr AllocWeakPtr();
     RoomObstacleWeakPtr& GetWeakPtrRef();
+    void Destory();
 
 private:
     void SpecExplosion();
@@ -49,6 +49,7 @@ private:
 
     void SummonAirDropBox(int box_id);
     void ProcKeepRangeBuff();
+    void DetachFromMaster();
 
 protected:
     RoomObstacleWeakPtr weak_ptr_;