diff --git a/Abilities.json b/Abilities.json
index de39ade..4adc4af 100644
--- a/Abilities.json
+++ b/Abilities.json
@@ -33,7 +33,9 @@
     "bad_dreams": {
         "effect": "BadDreams"
     },
-    "battery": {},
+    "battery": {
+        "effect": "Battery"
+    },
     "battle_armor": {},
     "battle_bond": {},
     "beast_boost": {},
diff --git a/Scripts/Abilities/Battery.as b/Scripts/Abilities/Battery.as
new file mode 100644
index 0000000..a3088f0
--- /dev/null
+++ b/Scripts/Abilities/Battery.as
@@ -0,0 +1,12 @@
+namespace Gen7 {
+    [Ability effect=Battery]
+    class BatteryAbility : PkmnScript {
+        void OnSwitchIn(Pokemon@ pokemon) override {
+            pokemon.BattleSide.AddVolatile("Battery");
+        }
+
+        void OnRemove() override {
+            cast<Pokemon@>(GetOwner()).BattleSide.RemoveVolatile("Battery");
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/Abilities/BattleArmor.as b/Scripts/Abilities/BattleArmor.as
new file mode 100644
index 0000000..f7743de
--- /dev/null
+++ b/Scripts/Abilities/BattleArmor.as
@@ -0,0 +1,8 @@
+namespace Gen7 {
+    [Ability effect=BattleArmor]
+    class BattleArmor : PkmnScript {
+        void BlockCritical(ExecutingMove@, Pokemon@, uint8, bool &inout blockCrit) override {
+            blockCrit = true;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/Abilities/BattleBond.as b/Scripts/Abilities/BattleBond.as
new file mode 100644
index 0000000..0012547
--- /dev/null
+++ b/Scripts/Abilities/BattleBond.as
@@ -0,0 +1,16 @@
+namespace Gen7 {
+    [Ability effect=BattleBond]
+    class BattleBond : PkmnScript {
+        void OnFaintingOpponent(ExecutingMove@ move, Pokemon@, uint8) override {
+            if (move.User.Species.Name == "greninja"){
+                move.User.ChangeForme("ash");
+            }
+        }
+
+        void OverrideBasePower(ExecutingMove@ move, Pokemon@, uint8, uint8 &inout damage) override {
+            if (move.User.Forme.Name == "ash" && move.UseMove.Name == "water_shuriken"){
+                damage = 20;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/Abilities/BeastBoost.as b/Scripts/Abilities/BeastBoost.as
new file mode 100644
index 0000000..fe07a60
--- /dev/null
+++ b/Scripts/Abilities/BeastBoost.as
@@ -0,0 +1,34 @@
+namespace Gen7 {
+    class BeastBoost : PkmnScript {
+        void OnFaintingOpponent(ExecutingMove@ move, Pokemon@, uint8) override {
+            Statistic increaseStat = Statistic::HP;
+            auto user = move.User;
+            if (user.GetFlatStat(Statistic::Attack) > user.GetFlatStat(Statistic::HP) &&
+                user.GetFlatStat(Statistic::Attack) > user.GetFlatStat(Statistic::Defense) &&
+                user.GetFlatStat(Statistic::Attack) > user.GetFlatStat(Statistic::SpecialAttack) &&
+                user.GetFlatStat(Statistic::Attack) > user.GetFlatStat(Statistic::SpecialDefense) &&
+                user.GetFlatStat(Statistic::Attack) > user.GetFlatStat(Statistic::Speed)) {
+                increaseStat = Statistic::Attack;
+            }
+            if (user.GetFlatStat(Statistic::Defense) > user.GetFlatStat(Statistic::HP) &&
+                user.GetFlatStat(Statistic::Defense) > user.GetFlatStat(Statistic::SpecialAttack) &&
+                user.GetFlatStat(Statistic::Defense) > user.GetFlatStat(Statistic::SpecialDefense) &&
+                user.GetFlatStat(Statistic::Defense) > user.GetFlatStat(Statistic::Speed)) {
+                increaseStat = Statistic::Defense;
+            }
+            if (user.GetFlatStat(Statistic::SpecialAttack) > user.GetFlatStat(Statistic::HP) &&
+                user.GetFlatStat(Statistic::SpecialAttack) > user.GetFlatStat(Statistic::SpecialDefense) &&
+                user.GetFlatStat(Statistic::SpecialAttack) > user.GetFlatStat(Statistic::Speed)) {
+                increaseStat = Statistic::SpecialAttack;
+            }
+            if (user.GetFlatStat(Statistic::SpecialDefense) > user.GetFlatStat(Statistic::HP) &&
+                user.GetFlatStat(Statistic::SpecialDefense) > user.GetFlatStat(Statistic::Speed)) {
+                increaseStat = Statistic::SpecialDefense;
+            }
+            if (user.GetFlatStat(Statistic::Speed) > user.GetFlatStat(Statistic::HP)) {
+                increaseStat = Statistic::Speed;
+            }
+            user.ChangeStatBoost(increaseStat, 1);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/Abilities/Berserk.as b/Scripts/Abilities/Berserk.as
new file mode 100644
index 0000000..d0435fe
--- /dev/null
+++ b/Scripts/Abilities/Berserk.as
@@ -0,0 +1,9 @@
+namespace Gen7 {
+    class Berserk : PkmnScript {
+        void OnDamage(Pokemon@ pokemon, DamageSource, uint old, uint new) override {
+            if (float(old) / pokemon.MaxHealth >= 0.5f && float(new) / pokemon.MaxHealth < 0.5f) {
+                pokemon.ChangeStatBoost(Statistic::SpecialDefense, 1);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/BattleSide/BatteryEffect.as b/Scripts/BattleSide/BatteryEffect.as
new file mode 100644
index 0000000..813e146
--- /dev/null
+++ b/Scripts/BattleSide/BatteryEffect.as
@@ -0,0 +1,25 @@
+namespace Gen7 {
+    [Side effect=Battery]
+    class BatteryEffect : PkmnScript {
+        int num = 1;
+
+        void Stack() override {
+            num++;
+        }
+
+        void Unstack() {
+            num--;
+            if (num == 0){
+                cast<BattleSide@>(GetOwner()).RemoveVolatile("Battery");
+            }
+        }
+
+        void OverrideBasePower(ExecutingMove@ move, Pokemon@, uint8, uint8 &inout power) override {
+            if (move.UseMove.Category == MoveCategory::Special) {
+                auto p = power * 1.3f;
+                if (p > 255) p = 255;
+                power = uint8(p);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/Interfaces/PkmnScript.as b/Scripts/Interfaces/PkmnScript.as
index a35c35c..9a7e437 100644
--- a/Scripts/Interfaces/PkmnScript.as
+++ b/Scripts/Interfaces/PkmnScript.as
@@ -17,7 +17,9 @@ shared abstract class PkmnScript {
 	void OnAttackMiss(ExecutingMove@, Pokemon@){};
 	void ChangeAttackType(ExecutingMove@, Pokemon@, uint8, uint8 &inout){};
 	void ChangeEffectiveness(ExecutingMove@, Pokemon@, uint8, float &inout){};
+	void BlockCritical(ExecutingMove@, Pokemon@, uint8, bool &inout){};
 	void OnIncomingHit(ExecutingMove@, Pokemon@, uint8){};
+	void OnFaintingOpponent(ExecutingMove@, Pokemon@, uint8){};
 	void PreventSecondaryEffects(ExecutingMove@, Pokemon@, uint8, bool &inout){};
 	void OnSecondaryEffect(ExecutingMove@, Pokemon@, uint8){};
 	void OnAfterHits(ExecutingMove@, Pokemon@){};
@@ -39,6 +41,7 @@ shared abstract class PkmnScript {
 	void PreventOpponentRunAway(FleeTurnChoice@, bool &inout){};
 	void PreventOpponentSwitch(SwitchTurnChoice@, bool &inout){};
 	void OnEndTurn(){};
+	void OnDamage(Pokemon@, DamageSource, uint, uint){};
 	void OnFaint(Pokemon@, DamageSource){};
 	void ModifyCriticalStage(ExecutingMove@, Pokemon@, uint8, uint8 &inout){};
 	void OverrideCriticalModifier(ExecutingMove@, Pokemon@, uint8, float &inout){};
diff --git a/Scripts/Interfaces/Pokemon.astypedef b/Scripts/Interfaces/Pokemon.astypedef
index 0a63ac7..abc3778 100644
--- a/Scripts/Interfaces/Pokemon.astypedef
+++ b/Scripts/Interfaces/Pokemon.astypedef
@@ -39,5 +39,6 @@ type Pokemon {
     ref@ AddVolatile(const constString &in name);
     void RemoveVolatile(const constString &in name) const;
     void ClearStatus() const;
-    void SetStatus(const constString &inout name);
+    void SetStatus(const constString &in name);
+    void ChangeForme(const constString &in name);
 }
diff --git a/fetch_tester.sh b/fetch_tester.sh
index d67ba92..92d0506 100755
--- a/fetch_tester.sh
+++ b/fetch_tester.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-TESTERVERSION=0.0.11
+TESTERVERSION=0.0.12
 
 # Get the release information from the api for the specified version
 curl -X GET "https://git.p-epsilon.com/api/v1/repos/Deukhoofd/PokemonScriptTester/releases/tags/$TESTERVERSION" -H  "accept: application/json" |