diff --git a/server/gameserver/android.ai.cc b/server/gameserver/android.ai.cc
index 2d6e465..d4517af 100644
--- a/server/gameserver/android.ai.cc
+++ b/server/gameserver/android.ai.cc
@@ -14,11 +14,14 @@ void AndroidAI::Update(int delta_time)
         hum->poisoning_time += delta_time;
     }
     state_elapsed_time += delta_time;
+    if (hum->dead) {
+        return;
+    }
     if (hum->poisoning) {
         hum->UpdatePoisoning();
     }
-    if (hum->dead) {
-        return;
+    if (hum->playing_skill) {
+        hum->UpdateSkill();
     }
     switch (state) {
     case AS_thinking:
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 943211a..981abbf 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -17,6 +17,7 @@
 #include "android.h"
 #include "gamelog.h"
 #include "typeconvert.h"
+#include "obstacle.h"
 
 #include "framework/cpp/utils.h"
 #include "framework/cpp/httpclientpool.h"
@@ -431,6 +432,21 @@ void Human::UpdatePoisoning()
     }
 }
 
+void Human::UpdateSkill()
+{
+    if (skill_meta) {
+        if (curr_skill_phase < skill_meta->phases.size()) {
+            MetaData::SkillPhase* phase = &skill_meta->phases[curr_skill_phase];
+            if (phase->time_offset > (room->frame_no - last_use_skill_frameno_) * FRAME_RATE_MS) {
+                ProcSkillPhase(phase);
+                ++curr_skill_phase;
+            }
+        } else {
+            playing_skill = false;
+        }
+    }
+}
+
 void Human::SyncAroundPlayers()
 {
     for (auto& cell : grid_list) {
@@ -647,18 +663,28 @@ bool Human::HasNoDownedTeammate()
 void Human::DoSkill()
 {
     if (skill_meta && GetSkillLeftTime() <= 0) {
+        use_skill = false;
+        curr_skill_phase = 0;
+        skill_dir = a8::Vec2();
+        skill_target_pos = a8::Vec2();
+        skill_param1 = 0.0f;
+        playing_skill = true;
+        last_use_skill_frameno_ = room->frame_no;
         Entity* entity = room->GetEntityByUniId(skill_target_id);
         if (entity && entity->entity_type == ET_Player) {
             Human* hum = (Human*)entity;
             std::set<Entity*> target_list;
+            skill_target_pos = hum->pos;
             SelectSkillTargets(hum->pos, target_list);
             TriggerBuff(target_list, BTT_UseSkill);
+            if (!skill_meta->phases.empty() && skill_meta->phases[0].time_offset <= 0) {
+                UpdateSkill();
+            }
+        } else {
+            playing_skill = false;
         }
     }
     use_skill = false;
-    skill_target_id = 0;
-    skill_dir = a8::Vec2();
-    skill_param1 = 0.0f;
 }
 
 void Human::FindLocation()
@@ -1568,6 +1594,11 @@ void Human::Revive()
     room->frame_event.AddRevive(this);
     room->OnHumanRevive(this);
 
+    use_skill = false;
+    curr_skill_phase = 0;
+    skill_dir = a8::Vec2();
+    skill_param1 = 0.0f;
+    playing_skill = false;
 }
 
 void Human::SelectSkillTargets(const a8::Vec2& target_pos, std::set<Entity*>& target_list)
@@ -1677,3 +1708,29 @@ Buff* Human::GetBuffByEffectId(int effect_id)
 {
     return IsValidBuffEffect(effect_id) ? buff_effect_[effect_id] : nullptr;
 }
+
+void Human::ProcSkillPhase(MetaData::SkillPhase* phase)
+{
+    switch (phase->func_id) {
+    case Skill_Jump:
+        {
+
+        }
+        break;
+    case Skill_Shot:
+        {
+
+        }
+        break;
+    case Skill_SummonObject:
+        {
+            Obstacle* obstacle = room->CreateObstacle(phase->param1.GetInt(), pos.x, pos.y);
+            if (obstacle) {
+                obstacle->master_id = entity_uniid;
+            }
+        }
+        break;
+    default:
+        break;
+    }
+}
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index ed3c24c..8a87f34 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -12,6 +12,7 @@ namespace MetaData
     struct Dress;
     struct Skill;
     struct Tank;
+    struct SkillPhase;
 }
 
 enum HumanStatus
@@ -121,7 +122,9 @@ class Human : public Entity
     int curr_skill_phase = 0;
     int skill_target_id = 0;
     a8::Vec2 skill_dir;
+    a8::Vec2 skill_target_pos;
     float skill_param1 = 0;
+    bool playing_skill = false;
 
     Human();
     virtual ~Human() override;
@@ -142,6 +145,7 @@ class Human : public Entity
     float GetRadius();
     float GetMaxHP();
     void UpdatePoisoning();
+    void UpdateSkill();
     void SyncAroundPlayers();
     void AutoLoadingBullet(bool manual = false);
     void StartAction(ActionType_e action_type,
@@ -218,6 +222,7 @@ private:
     void Revive();
     void SelectSkillTargets(const a8::Vec2& target_pos, std::set<Entity*>& target_list);
     Buff* GetBuffById(int buff_id);
+    void ProcSkillPhase(MetaData::SkillPhase* phase);
 
 protected:
     long long last_shot_frameno_ = 0;
diff --git a/server/gameserver/obstacle.cc b/server/gameserver/obstacle.cc
index 631626f..90d418a 100644
--- a/server/gameserver/obstacle.cc
+++ b/server/gameserver/obstacle.cc
@@ -114,6 +114,9 @@ void Obstacle::FillMFObjectFull(cs::MFObjectFull* full_data)
     p->set_health(health);
     p->set_dead(dead);
     p->set_dead_at_thisframe(dead ? dead_frameno <= room->frame_no : false);
+    if (master_id != 0) {
+        p->set_master_id(master_id);
+    }
 
     p->set_is_door(is_door);
     if (is_door) {
diff --git a/server/gameserver/obstacle.h b/server/gameserver/obstacle.h
index d2c9fdd..74076ae 100644
--- a/server/gameserver/obstacle.h
+++ b/server/gameserver/obstacle.h
@@ -32,6 +32,7 @@ class Obstacle : public Entity
     DoorState_e door_state = DoorStateClose;
     Building* building = nullptr;
     int door_house_uniid = 0;
+    int master_id = 0;
     const metatable::DoorObjJson* door_state0 = nullptr;
     const metatable::DoorObjJson* door_state1 = nullptr;
 
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index f936a1c..b9a0132 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -64,6 +64,9 @@ void Player::Update(int delta_time)
         if (poisoning) {
             UpdatePoisoning();
         }
+        if (playing_skill) {
+            UpdateSkill();
+        }
         if (select_weapon) {
             UpdateSelectWeapon();
         }
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 67a4468..9448e4e 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -87,6 +87,7 @@ public:
     std::set<Human*>* GetAliveTeam();
     bool CanJoin(const std::string& accountid);
     void OnPlayerOffline(Player* hum);
+    Obstacle* CreateObstacle(int id, float x, float y);
 
 private:
     int AllocUniid();
@@ -98,7 +99,6 @@ private:
     void AutoMatchTeam();
     void MatchTeam(Human* hum);
     int NewTeam();
-    Obstacle* CreateObstacle(int id, float x, float y);
     void CreateThings();
     void CreateBuilding(int thing_id, float building_x, float building_y);
     Obstacle* InternalCreateObstacle(int id, float x, float y,