diff --git a/BotWrapper/bot.conf b/BotWrapper/bot.conf
index 66f50839..64a73f6a 100644
--- a/BotWrapper/bot.conf
+++ b/BotWrapper/bot.conf
@@ -14,9 +14,19 @@ Random=AI_LV2
 一些比较弱的卡组。
 SUPPORT_MASTER_RULE_2020
 
-!随机-普通
+!随机-一般
 Random=AI_LV3
-一些环境里可以看到的卡组。
+一些不是很弱的卡组。
+SUPPORT_MASTER_RULE_2020
+
+!随机-普通
+Random=AI_LV4
+一些可以（或者曾经可以）在竞技环境里看到的卡组。
+SUPPORT_MASTER_RULE_2020
+
+!随机-狂野
+Random=AI_WILD
+普通的人机的卡组会符合其使用的卡池对应的环境的禁限卡表，但狂野模式的人机的卡组一般不符合任何禁限卡表。
 SUPPORT_MASTER_RULE_2020
 
 !随机-报社
@@ -67,17 +77,17 @@ AI_LV2 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
 !琪露诺-饼蛙
 Name=琪露诺 Deck='Toadally Awesome' Dialog=cirno.zh-CN
 大师规则三的全盛饼蛙卡组。
-SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
+AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
 
 !复制植物-青眼
 Name=复制植物 Deck=Blue-Eyes Dialog=copy.zh-CN
 青眼卡组。
-AI_LV2 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
+AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
 
 !复制植物-十二兽
 Name=复制植物 Deck=Zoodiac Dialog=copy.zh-CN
 大师规则三的十四兽卡组。
-SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
 
 !尼亚-妖仙兽
 Name=尼亚 Deck=Yosenju Dialog=near.zh-CN
@@ -92,17 +102,17 @@ AI_ANTI_META SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2
 !尼亚-淘气仙星
 Name=尼亚 Deck=Trickstar Dialog=near.zh-CN
 旧式淘气仙星卡组。
-AI_LV3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !尼亚-幻变骚灵
 Name=尼亚 Deck=Altergeist Dialog=near.zh-CN
 幻变骚灵卡组。
-AI_LV3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !尼亚-拉比林斯迷宫
 Name=尼亚 Deck=Labrynth Dialog=near.zh-CN
 拉比林斯迷宫卡组。
-AI_LV3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !复制梁龙-闪刀姬
 Name=复制梁龙 Deck=SkyStriker Dialog=anothercopy.zh-CN
@@ -112,7 +122,7 @@ AI_LV3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 !复制梁龙-自奏圣乐
 Name=复制梁龙 Deck=Orcust Dialog=anothercopy.zh-CN
 旧式自奏圣乐卡组。
-AI_LV3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !复制梁龙-转生炎兽
 Name=复制梁龙 Deck=Salamangreat Dialog=anothercopy.zh-CN
@@ -152,7 +162,7 @@ AI_LV2 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 !试作型机器人1732
 Name=试作型机器人1732 Deck=ST1732 Dialog=zh-CN
 由三盒ST17和三盒SD32组成的卡组。
-AI_LV2 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV1 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !奇異果
 Name=奇異果 Deck=LightswornShaddoldinosour Dialog=kiwi.zh-TW
@@ -167,7 +177,7 @@ AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 !MAX龍果
 Name=MAX龍果 Deck=BlueEyesMaxDragon Dialog=kiwi.zh-TW
 青眼混沌极龙卡组。
-AI_LV2 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !幻煌果
 Name=幻煌果 Deck=Phantasm Dialog=kiwi.zh-TW
@@ -187,59 +197,59 @@ AI_ANTI_META SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2
 !我太帅了-真红眼龙骑士
 Name=我太帅了 Deck=Dragun Dialog=smart.zh-CN
 超魔导真红眼龙骑士卡组。
-AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !我太帅了-水百凤凰勇者
 Name=我太帅了 Deck=Brave Dialog=smart.zh-CN
 水机百头龙凤凰人勇者卡组。
-AI_LV3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_2020
 
 !玻璃女巫-魔女术
 Name=玻璃女巫 Deck=Witchcraft Dialog=verre.zh-CN
 魔女术卡组。
-AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !玻璃女巫-救祓少女
 Name=玻璃女巫 Deck=Exosister Dialog=verre.zh-CN
 救祓少女卡组。
-AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
 
 !艾克莉西娅-相剑
 Name=艾克莉西娅 Deck=Swordsoul Dialog=ecclesia.zh-CN
 相剑卡组。
-AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_3 SUPPORT_MASTER_RULE_2020
 
 !艾克莉西娅-教导
 Name=艾克莉西娅 Deck=Dogmatika Dialog=ecclesia.zh-CN
 教导卡组。
-AI_LV3 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_3 SUPPORT_NEW_MASTER_RULE SUPPORT_MASTER_RULE_2020
 
 !神数不神-刹帝利
 Name=神数不神 Deck=Kashtira Dialog=Zefra.zh-CN
 俱舍怒威族卡组。
-AI_LV3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_2020
 
-![狂野模式]神数不神-雷龙
+![狂野]神数不神-雷龙
 Name=神数不神 Deck=ThunderDragon Dialog=Zefra.zh-CN
-深渊混沌雷龙卡组。（普通模式的人机的卡组会符合其使用的卡池对应的环境的禁限卡表，但在狂野模式中，人机的卡组不符合任何禁限卡表。）
-SUPPORT_MASTER_RULE_2020
+深渊混沌雷龙卡组。
+AI_WILD SUPPORT_MASTER_RULE_2020
 
 !神数不神-珠泪哀歌
 Name=神数不神 Deck=Tearlaments Dialog=Zefra.zh-CN
 旧式地天使珠泪哀歌族卡组。
-AI_LV3 SUPPORT_MASTER_RULE_2020
+AI_LV4 AI_WILD SUPPORT_MASTER_RULE_2020
 
 !神数不神-神数
 Name=神数不神 Deck=Zefra Dialog=Zefra.zh-CN
 神数卡组。
-AI_LV3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_2020
 
 !今晚有宵夜吗-超重武者
 Name=今晚有宵夜吗 Deck=SuperheavySamurai Dialog=superheavysamurai.zh-CN
 超重武者卡组。
-AI_LV3 SUPPORT_MASTER_RULE_2020
+AI_LV4 SUPPORT_MASTER_RULE_2020
 
 !无声的声音-肃声
-Name=今晚有宵夜吗 Deck=Voiceless Dialog=Zefra.zh-CN
+Name=无声的声音 Deck=Voiceless Dialog=zh-CN
 肃声卡组。
 AI_LV3 SUPPORT_MASTER_RULE_2020
diff --git a/Dialogs/default.json b/Dialogs/default.json
index 22ff2f28..311558d7 100644
--- a/Dialogs/default.json
+++ b/Dialogs/default.json
@@ -64,5 +64,11 @@
     "Before you do that, I'll chain {0}!",
     "Nice try, but I have {0}!",
     "Didn't expect {0}, did you?"
+  ],
+  "surrender": [
+    "I surrender.",
+    "You win this time.",
+    "I can't win this duel.",
+    "Good game."
   ]
 }
\ No newline at end of file
diff --git a/Dialogs/gugugu.zh-CN.json b/Dialogs/gugugu.zh-CN.json
index 5084819d..72d899a3 100644
--- a/Dialogs/gugugu.zh-CN.json
+++ b/Dialogs/gugugu.zh-CN.json
@@ -55,5 +55,10 @@
     "但我鸽了",
     "无此服务",
     "可怕"
+  ],
+  "surrender": [
+    "太可怕了（跑路",
+    "这游戏好难玩（跑路",
+    "还好我不玩游戏王（跑路"
   ]
 }
diff --git a/Dialogs/zh-CN.json b/Dialogs/zh-CN.json
index c77ba9d4..4a9d3b92 100644
--- a/Dialogs/zh-CN.json
+++ b/Dialogs/zh-CN.json
@@ -71,5 +71,9 @@
     "我不认同。{0}，发动！",
     "看样子你忘了我的{0}！",
     "你考虑过我有{0}吗？"
+  ],
+  "surrender": [
+    "我认输。",
+    "我承认你的胜利。"
   ]
 }
diff --git a/Game/AI/Decks/TearlamentsExecutor.cs b/Game/AI/Decks/TearlamentsExecutor.cs
index 3641c243..2300de7e 100644
--- a/Game/AI/Decks/TearlamentsExecutor.cs
+++ b/Game/AI/Decks/TearlamentsExecutor.cs
@@ -1705,7 +1705,7 @@ private bool UnderworldGoddessoftheClosedWorldLinkSummon(bool filter = true)
             if (Duel.Turn == 1 || Enemy.GetMonsterCount() <= 0) return false;
             List<ClientCard> e_cards = Enemy.GetMonsters().Where(card => card != null && card.IsFaceup() && card.IsAttack()).ToList();
             List<ClientCard> b_cards = Bot.GetMonsters().Where(card => card != null && card.IsFaceup() && card.IsAttack()).ToList();
-            if ((e_cards.Count <= 0 || b_cards.Count <= 0) && Enemy.MonsterZone.GetDangerousMonster() == null) return false;
+            if (e_cards.Count <= 0 || b_cards.Count <= 0 || Enemy.MonsterZone.GetDangerousMonster() == null) return false;
             e_cards.Sort(CardContainer.CompareCardAttack);
             e_cards.Reverse();
             b_cards.Sort(CardContainer.CompareCardAttack);
diff --git a/Game/AI/Dialogs.cs b/Game/AI/Dialogs.cs
index 00835649..8be0c716 100644
--- a/Game/AI/Dialogs.cs
+++ b/Game/AI/Dialogs.cs
@@ -36,6 +36,8 @@ public class DialogsData
         [DataMember]
         public string[] chaining { get; set; }
         [DataMember]
+        public string[] surrender { get; set; }
+        [DataMember]
         public string[] custom { get; set; }
     }
     public class Dialogs
@@ -55,6 +57,7 @@ public class Dialogs
         private string[] _summon;
         private string[] _setmonster;
         private string[] _chaining;
+        private string[] _surrender;
         private string[] _custom;
 
         public Dialogs(GameClient game)
@@ -78,6 +81,7 @@ public Dialogs(GameClient game)
                 _summon = data.summon;
                 _setmonster = data.setmonster;
                 _chaining = data.chaining;
+                _surrender = data.surrender;
                 _custom = data.custom;
             }
         }
@@ -162,10 +166,17 @@ public void SendChaining(string card)
             InternalSendMessage(_chaining, card);
         }
 
+        public void SendSurrender()
+        {
+            InternalSendMessage(_surrender);
+        }
+
         private void InternalSendMessage(IList<string> array, params object[] opts)
         {
             if (!_game._chat)
                 return;
+            if (array == null || array.Count == 0)
+                return;
             string message = string.Format(array[Program.Rand.Next(array.Count)], opts);
             if (message != "")
                 _game.Chat(message);
diff --git a/Game/AI/ExecutorType.cs b/Game/AI/ExecutorType.cs
index 47a557d3..d505f4dc 100644
--- a/Game/AI/ExecutorType.cs
+++ b/Game/AI/ExecutorType.cs
@@ -11,6 +11,7 @@ public enum ExecutorType
         SummonOrSet,
         GoToBattlePhase,
         GoToMainPhase2,
-        GoToEndPhase
+        GoToEndPhase,
+        Surrender
     }
 }
\ No newline at end of file
diff --git a/Game/GameAI.cs b/Game/GameAI.cs
index 77136319..4eda9711 100644
--- a/Game/GameAI.cs
+++ b/Game/GameAI.cs
@@ -25,6 +25,18 @@ public GameAI(GameClient game, Duel duel)
             _activatedCards = new Dictionary<int, int>();
         }
 
+        private void CheckSurrender()
+        {
+            foreach (CardExecutor exec in Executor.Executors)
+            {
+                if (exec.Type == ExecutorType.Surrender && exec.Func())
+                {
+                    _dialogs.SendSurrender();
+                    Game.Surrender();
+                }
+            }
+        }
+
         /// <summary>
         /// Called when the AI got the error message.
         /// </summary>
@@ -117,6 +129,7 @@ public void OnNewPhase()
                 _dialogs.SendNewTurn();
             }
             Executor.OnNewPhase();
+            CheckSurrender();
         }
 
         public void OnMove(ClientCard card, int previousControler, int previousLocation, int currentControler, int currentLocation)
@@ -130,6 +143,7 @@ public void OnMove(ClientCard card, int previousControler, int previousLocation,
         public void OnDirectAttack(ClientCard card)
         {
             _dialogs.SendOnDirectAttack(card.Name);
+            CheckSurrender();
         }
 
         /// <summary>
@@ -155,6 +169,7 @@ public void OnChainEnd()
             m_selector.Clear();
             m_selector_pointer = -1;
             Executor.OnChainEnd();
+            CheckSurrender();
         }
 
         /// <summary>
@@ -422,6 +437,7 @@ public bool OnSelectEffectYn(ClientCard card, int desc)
         public MainPhaseAction OnSelectIdleCmd(MainPhase main)
         {
             Executor.SetMain(main);
+            CheckSurrender();
             foreach (CardExecutor exec in Executor.Executors)
             {
             	if (exec.Type == ExecutorType.GoToEndPhase && main.CanEndPhase && exec.Func()) // check if should enter end phase directly
diff --git a/Game/GameClient.cs b/Game/GameClient.cs
index 89e0c5d7..616cac04 100644
--- a/Game/GameClient.cs
+++ b/Game/GameClient.cs
@@ -90,6 +90,11 @@ public void Chat(string message)
             Connection.Send(chat);
         }
 
+        public void Surrender()
+        {
+            Connection.Send(CtosMessage.Surrender);
+        }
+
         private void OnPacketReceived(BinaryReader reader)
         {
             _behavior.OnPacket(reader);