diff --git a/Java-Knight/src/main/java/org/project/entity/Entity.java b/Java-Knight/src/main/java/org/project/entity/Entity.java
index 9a5c16f..083287e 100644
--- a/Java-Knight/src/main/java/org/project/entity/Entity.java
+++ b/Java-Knight/src/main/java/org/project/entity/Entity.java
@@ -56,6 +56,32 @@ public abstract class Entity implements IDamageable, IHealable, IDefendable, IFi
 
     protected Entity() {}
 
+    public Entity(Entity other) {
+        this.Name = other.Name;
+        this.MaxHealth = other.MaxHealth;
+        this.Health = other.Health;
+        this.Stamina = other.Stamina;
+        this.MaxStamina = other.MaxStamina;
+        this.Money = other.Money;
+        this.BaseDamage = other.BaseDamage;
+        this.State = other.State;
+
+        this.Weapon = other.Weapon == null ? null : new Weapon(other.Weapon.getName(), this, other.Weapon.GetPrice(), other.Weapon.GetHealth(), other.Weapon.GetMaxHealth(), other.Weapon.GetDamage());
+        this.Shield = other.Shield == null ? null : new Shield(other.Shield.getName(), this, other.Shield.GetPrice(), other.Shield.GetHealth(), other.Shield.GetMaxHealth(), other.Shield.GetDefense());
+        this.Costume = other.Costume == null ? null : new Costume(other.Costume.getName(), this, other.Costume.GetPrice(), other.Costume.GetHealth(), other.Costume.GetMaxHealth(), other.Costume.GetDefense());
+
+        this.Inventory = other.Inventory == null ? null : new ArrayList<>(other.Inventory);
+        this.defencePowerUps = other.defencePowerUps == null ? null : new ArrayList<>(other.defencePowerUps);
+
+        this.DefenseBonus = other.DefenseBonus;
+        this.IsDefending = other.IsDefending;
+        this.HealAmount = other.HealAmount;
+        this.HeavyAttackStamina = other.HeavyAttackStamina;
+        this.SpecialAbilityStamina = other.SpecialAbilityStamina;
+    }
+
+    public abstract Entity copy();
+
     public int GetStamina() { return Stamina; }
 
     public void ResetStamina() { Stamina = MaxStamina; }
@@ -146,7 +172,7 @@ public abstract class Entity implements IDamageable, IHealable, IDefendable, IFi
 
     @Override
     public void TakeDamage(int amount, AttackPowerUp[] powerUps) {
-        if (!defencePowerUps.contains(DefencePowerUp.INVISIBLE)) return;
+        if (defencePowerUps != null && !defencePowerUps.contains(DefencePowerUp.INVISIBLE)) return;
 
         IDefender[] defenders = GetDefenders();
 
diff --git a/Java-Knight/src/main/java/org/project/entity/enemies/Dragon.java b/Java-Knight/src/main/java/org/project/entity/enemies/Dragon.java
index a1d7591..a43a4d0 100644
--- a/Java-Knight/src/main/java/org/project/entity/enemies/Dragon.java
+++ b/Java-Knight/src/main/java/org/project/entity/enemies/Dragon.java
@@ -26,6 +26,15 @@ public class Dragon extends Enemy {
         this("Dragon", 5000, 5000, 0, 100, EntityState.ALIVE, null, null, null, new ArrayList<>(){}, 50, false, 50, 500, 500, 1000);
     }
 
+    public Dragon (Dragon other) {
+        super(other);
+    }
+
+    @Override
+    public Dragon copy() {
+        return new Dragon(this);
+    }
+
     @Override
     public void DropLoot(Player player) {
         Key.Owner = player;
diff --git a/Java-Knight/src/main/java/org/project/entity/enemies/Enemy.java b/Java-Knight/src/main/java/org/project/entity/enemies/Enemy.java
index df17a8f..8d57c15 100644
--- a/Java-Knight/src/main/java/org/project/entity/enemies/Enemy.java
+++ b/Java-Knight/src/main/java/org/project/entity/enemies/Enemy.java
@@ -36,6 +36,14 @@ public abstract class Enemy extends Entity {
         super();
     }
 
+    public Enemy(Enemy other) {
+        super(other);
+        this.Key = new KeyItem(other.Key.getName(), other.Key.Owner);
+    }
+
+    @Override
+    public abstract Enemy copy();
+
     public void DropLoot(Player player) {
         Random random = new Random();
 
diff --git a/Java-Knight/src/main/java/org/project/entity/enemies/Goblin.java b/Java-Knight/src/main/java/org/project/entity/enemies/Goblin.java
index 49c50d9..67ef44f 100644
--- a/Java-Knight/src/main/java/org/project/entity/enemies/Goblin.java
+++ b/Java-Knight/src/main/java/org/project/entity/enemies/Goblin.java
@@ -25,6 +25,15 @@ public class Goblin extends Enemy {
         this("Goblin", 75, 75, 100, 10, EntityState.ALIVE, null, null, null, new ArrayList<>(), 5, false, 15, 100, 100, 50);
     }
 
+    public Goblin (Goblin other) {
+        super(other);
+    }
+
+    @Override
+    public Goblin copy() {
+        return new Goblin(this);
+    }
+
     @Override
     public void SpecialAbility(Entity entity) {
         ModifyStamina(SpecialAbilityStamina, false);
diff --git a/Java-Knight/src/main/java/org/project/entity/enemies/Skeleton.java b/Java-Knight/src/main/java/org/project/entity/enemies/Skeleton.java
index 08194cd..0eda767 100644
--- a/Java-Knight/src/main/java/org/project/entity/enemies/Skeleton.java
+++ b/Java-Knight/src/main/java/org/project/entity/enemies/Skeleton.java
@@ -29,6 +29,15 @@ public class Skeleton extends Enemy {
         this("Skeleton", 125, 125, 200, 15, EntityState.ALIVE, null, null, null, new ArrayList<>(), 5, false, 20, 100, 100, 100);
     }
 
+    public Skeleton (Skeleton other) {
+        super(other);
+    }
+
+    @Override
+    public Skeleton copy() {
+        return new Skeleton(this);
+    }
+
     @Override
     public ArrayList<FightMoves> GetAvailableMoves() {
         if (GetState() == EntityState.FROZEN || GetState() == EntityState.DEAD) return new ArrayList<>(){};
diff --git a/Java-Knight/src/main/java/org/project/entity/enemies/Vampire.java b/Java-Knight/src/main/java/org/project/entity/enemies/Vampire.java
index 2596051..4106475 100644
--- a/Java-Knight/src/main/java/org/project/entity/enemies/Vampire.java
+++ b/Java-Knight/src/main/java/org/project/entity/enemies/Vampire.java
@@ -25,6 +25,15 @@ public class Vampire extends Enemy {
         this("Vampire", 150, 150, 300, 20, EntityState.ALIVE, null, null, null, new ArrayList<>(), 8, false, 30, 100, 100, 150);
     }
 
+    public Vampire (Vampire other) {
+        super(other);
+    }
+
+    @Override
+    public Vampire copy() {
+        return new Vampire(this);
+    }
+
     @Override
     public void SpecialAbility(Entity entity) {
         int curHealth = entity.Health;
diff --git a/Java-Knight/src/main/java/org/project/entity/players/Assassin.java b/Java-Knight/src/main/java/org/project/entity/players/Assassin.java
index 710e97e..ce70200 100644
--- a/Java-Knight/src/main/java/org/project/entity/players/Assassin.java
+++ b/Java-Knight/src/main/java/org/project/entity/players/Assassin.java
@@ -27,6 +27,15 @@ public class Assassin extends Player {
         this(name, 125, 125, 100, 15, EntityState.ALIVE, null, null, null, new ArrayList<>(), 5, false, 35, 100, 100, 1, 0);
     }
 
+    public Assassin(Assassin other) {
+        super(other);
+    }
+
+    @Override
+    public Assassin copy() {
+        return new Assassin(this);
+    }
+
     @Override
     public void SpecialAbility(Entity entity) {
         ModifyStamina(SpecialAbilityStamina, false);
diff --git a/Java-Knight/src/main/java/org/project/entity/players/Knight.java b/Java-Knight/src/main/java/org/project/entity/players/Knight.java
index 1cb1b06..3fac198 100644
--- a/Java-Knight/src/main/java/org/project/entity/players/Knight.java
+++ b/Java-Knight/src/main/java/org/project/entity/players/Knight.java
@@ -27,6 +27,15 @@ public class Knight extends Player {
         this(name, 150, 150, 100, 20, EntityState.ALIVE, null, null, null, new ArrayList<>(), 8, false, 30, 100, 100, 1, 0);
     }
 
+    public Knight(Knight other) {
+        super(other);
+    }
+
+    @Override
+    public Knight copy() {
+        return new Knight(this);
+    }
+
     @Override
     public void SpecialAbility(Entity entity) {
         ModifyStamina(SpecialAbilityStamina, false);
diff --git a/Java-Knight/src/main/java/org/project/entity/players/Player.java b/Java-Knight/src/main/java/org/project/entity/players/Player.java
index 2625d65..97b84c8 100644
--- a/Java-Knight/src/main/java/org/project/entity/players/Player.java
+++ b/Java-Knight/src/main/java/org/project/entity/players/Player.java
@@ -29,6 +29,15 @@ public abstract class Player extends Entity {
         super();
     }
 
+    public Player(Player other) {
+        super(other);
+        this.Level = other.Level;
+        this.LevelProgress = other.LevelProgress;
+    }
+
+    @Override
+    public abstract Player copy();
+
     public void LevelUpTo(int level) {
         while (Level < level) {
             UnconditionalLevelUp();
@@ -68,15 +77,15 @@ public abstract class Player extends Entity {
         int damage = GetDamage();
 
         Damage(target, (int)(damage * 0.5), new AttackPowerUp[]{});
-        ModifyStamina(MaxStamina/8, true);
+        ModifyStamina(MaxStamina/8, false);
     }
 
     @Override
     public void HeavyAttack(IDamageable target) {
         int damage = GetDamage();
-        ModifyStamina(HeavyAttackStamina, false);
 
         Damage(target, damage, new AttackPowerUp[]{});
+        ModifyStamina(HeavyAttackStamina, false);
     }
 
     @Override
diff --git a/Java-Knight/src/main/java/org/project/entity/players/Wizard.java b/Java-Knight/src/main/java/org/project/entity/players/Wizard.java
index f23bfb6..7c58d3d 100644
--- a/Java-Knight/src/main/java/org/project/entity/players/Wizard.java
+++ b/Java-Knight/src/main/java/org/project/entity/players/Wizard.java
@@ -27,6 +27,15 @@ public class Wizard extends Player {
         this(name, 100, 100, 100, 15, EntityState.ALIVE, null, null, null, new ArrayList<>(), 5, false, 40, 100, 100, 1, 0);
     }
 
+    public Wizard(Wizard other) {
+        super(other);
+    }
+
+    @Override
+    public Wizard copy() {
+        return new Wizard(this);
+    }
+
     @Override
     public void SpecialAbility(Entity entity) {
         ModifyStamina(SpecialAbilityStamina, false);