diff --git a/logic/GameClass/GameObj/Character.cs b/logic/GameClass/GameObj/Character.cs
index 4135948..d9e59e7 100644
--- a/logic/GameClass/GameObj/Character.cs
+++ b/logic/GameClass/GameObj/Character.cs
@@ -341,10 +341,6 @@ public class Character : Movable, ICharacter
                 }
             case EquipmentType.BERSERK_POTION:
                 {
-                    if (IsBerserk)
-                    {
-                        return false;
-                    }
                     IsBerserk = true;
                     BerserkTime = Environment.TickCount64;
                     SetCharacterState(CharacterState1, CharacterState.BERSERK);//此处缺少时间限制
diff --git a/logic/Gaming/CharacterManager.cs b/logic/Gaming/CharacterManager.cs
index e42b3a2..6e6fc88 100644
--- a/logic/Gaming/CharacterManager.cs
+++ b/logic/Gaming/CharacterManager.cs
@@ -299,6 +299,7 @@ namespace Gaming
                         character.Shoes.SubPositiveV(GameData.CrazySpeed);
                         character.ATKFrequency = GameData.ATKFreq;
                         character.BerserkTime = long.MaxValue;
+                        character.IsBerserk = false;
                     }
                 }
             }
@@ -314,7 +315,15 @@ namespace Gaming
                         character.IsShoes = false;
                     }
                 }
-
+            }
+            public void CheckInvisibility(Character character)
+            {
+                int nowtime = gameMap.Timer.NowTime();
+                if (nowtime >= GameData.SevenMinutes
+                )
+                {
+                    character.visible = true;
+                }
             }
         }
     }
diff --git a/logic/Gaming/Game.cs b/logic/Gaming/Game.cs
index 74e540f..3eeb302 100644
--- a/logic/Gaming/Game.cs
+++ b/logic/Gaming/Game.cs
@@ -423,6 +423,18 @@ namespace Gaming
         {
             if (!gameMap.Timer.IsGaming)
                 return false;
+            int nowtime = gameMap.Timer.NowTime();
+            if (nowtime >= GameData.SevenMinutes)
+            {
+                if (equiptype == EquipmentType.INVISIBILITY_POTION)
+                {
+                    return false;
+                }
+            }
+            else if (equiptype == EquipmentType.BERSERK_POTION)
+            {
+                return false;
+            }
             Character? character = gameMap.FindCharacterInPlayerID(teamID, characterID);
             if (character != null && character.IsRemoved == false)
                 return equipManager.GetEquipment(character, equiptype);
diff --git a/logic/Preparation/Utility/GameData.cs b/logic/Preparation/Utility/GameData.cs
index 3ef8aae..9b0c142 100644
--- a/logic/Preparation/Utility/GameData.cs
+++ b/logic/Preparation/Utility/GameData.cs
@@ -214,5 +214,6 @@ namespace Preparation.Utility
         public const int InitialMoney = 5000;
         public const int CharacterTotalNumMax = 6;
         public const double RecycleRate = 0.5;
+        public const int SevenMinutes = 420000;
     }
 }