diff --git a/Abilities.json b/Abilities.json
index dd79e99..29171f2 100644
--- a/Abilities.json
+++ b/Abilities.json
@@ -65,7 +65,9 @@
         "effect": "DoubleSpeedInWeather",
         "parameters": ["HarshSunlight"]
     },
-    "clear_body": {},
+    "clear_body": {
+        "effect": "PreventStatLowering"
+    },
     "cloud_nine": {},
     "color_change": {},
     "comatose": {},
diff --git a/Scripts/Abilities/AngerPoint.as b/Scripts/Abilities/AngerPoint.as
index 59d2914..543845f 100644
--- a/Scripts/Abilities/AngerPoint.as
+++ b/Scripts/Abilities/AngerPoint.as
@@ -2,7 +2,7 @@ namespace Gen7 {
     class AngerPoint : PkmnScript {
         void OnIncomingHit(ExecutingMove@ move, Pokemon@ target, uint8 hit) override {
             if (move.GetHitData(target, hit).IsCritical){
-                target.ChangeStatBoost(Statistic::Attack, 12);
+                target.ChangeStatBoost(Statistic::Attack, 12, true);
             }
         }
     }
diff --git a/Scripts/Abilities/BeastBoost.as b/Scripts/Abilities/BeastBoost.as
index e58b69b..7648732 100644
--- a/Scripts/Abilities/BeastBoost.as
+++ b/Scripts/Abilities/BeastBoost.as
@@ -29,7 +29,7 @@ namespace Gen7 {
             if (user.GetFlatStat(Statistic::Speed) > user.GetFlatStat(Statistic::HP)) {
                 increaseStat = Statistic::Speed;
             }
-            user.ChangeStatBoost(increaseStat, 1);
+            user.ChangeStatBoost(increaseStat, 1, true);
         }
     }
 }
\ No newline at end of file
diff --git a/Scripts/Abilities/Berserk.as b/Scripts/Abilities/Berserk.as
index 973453f..d0dfc10 100644
--- a/Scripts/Abilities/Berserk.as
+++ b/Scripts/Abilities/Berserk.as
@@ -3,7 +3,7 @@ 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);
+                pokemon.ChangeStatBoost(Statistic::SpecialDefense, 1, true);
             }
         }
     }
diff --git a/Scripts/Abilities/PreventDefLowering.as b/Scripts/Abilities/PreventDefLowering.as
index f532b87..cebfb81 100644
--- a/Scripts/Abilities/PreventDefLowering.as
+++ b/Scripts/Abilities/PreventDefLowering.as
@@ -1,8 +1,8 @@
 namespace Gen7 {
     [Ability effect=PreventDefLowering]
     class PreventDefLowering : PkmnScript {
-        void PreventStatBoostChange(Pokemon@, Statistic stat, int8 amount, bool &inout prevent) override {
-            if (stat == Statistic::Defense && amount < 0) {
+        void PreventStatBoostChange(Pokemon@, Statistic stat, int8 amount, bool selfInflicted, bool &inout prevent) override {
+            if (stat == Statistic::Defense && amount < 0 && !selfInflicted) {
                 prevent = true;
             }
         }
diff --git a/Scripts/Abilities/PreventStatLowering.as b/Scripts/Abilities/PreventStatLowering.as
new file mode 100644
index 0000000..ff81e3c
--- /dev/null
+++ b/Scripts/Abilities/PreventStatLowering.as
@@ -0,0 +1,10 @@
+namespace Gen7 {
+    [Ability effect=PreventStatLowering]
+    class PreventStatLowering : PkmnScript {
+        void PreventStatBoostChange(Pokemon@, Statistic stat, int8 amount, bool selfInflicted, bool &inout prevent) override {
+            if (amount < 0 && !selfInflicted) {
+                prevent = true;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Scripts/Interfaces/PkmnScript.as b/Scripts/Interfaces/PkmnScript.as
index 9ebb692..204b566 100644
--- a/Scripts/Interfaces/PkmnScript.as
+++ b/Scripts/Interfaces/PkmnScript.as
@@ -1,7 +1,8 @@
 shared abstract class PkmnScript {
 	ref@ __owner;
 
-	ref@& GetOwner(){ return __owner; };
+	const ref@& GetOwner(){ return __owner; };
+	void SetOwner(ref@){};
 	void OnInitialize(const BattleLibrary@, const narray<EffectParameter@>@){};
 	void Stack(){};
 	void OnRemove(){};
@@ -20,7 +21,7 @@ shared abstract class PkmnScript {
 	void BlockCritical(ExecutingMove@, Pokemon@, uint8, bool &inout){};
 	void OnIncomingHit(ExecutingMove@, Pokemon@, uint8){};
 	void OnFaintingOpponent(ExecutingMove@, Pokemon@, uint8){};
-	void PreventStatBoostChange(Pokemon@, Statistic, int8, bool &inout){};
+	void PreventStatBoostChange(Pokemon@, Statistic, int8, bool, bool &inout){};
 	void ModifyStatBoostChange(Pokemon@, Statistic, int8 &inout){};
 	void PreventSecondaryEffects(ExecutingMove@, Pokemon@, uint8, bool &inout){};
 	void OnSecondaryEffect(ExecutingMove@, Pokemon@, uint8){};
diff --git a/Scripts/Interfaces/Pokemon.astypedef b/Scripts/Interfaces/Pokemon.astypedef
index abc3778..2a390d3 100644
--- a/Scripts/Interfaces/Pokemon.astypedef
+++ b/Scripts/Interfaces/Pokemon.astypedef
@@ -30,7 +30,7 @@ type Pokemon {
     void Damage(uint type, DamageSource source);
     void Heal(uint type);
     void OverrideActiveAbility(const string &in ability);
-    void ChangeStatBoost(Statistic stat, int8 amount);
+    void ChangeStatBoost(Statistic stat, int8 amount, bool selfInflicted);
     uint GetFlatStat(Statistic stat) const;
     uint GetBoostedStat(Statistic stat) const;
     uint GetBaseStat(Statistic stat) const;
diff --git a/Scripts/Moves/Acupressure.as b/Scripts/Moves/Acupressure.as
index a2b4e14..0e83674 100644
--- a/Scripts/Moves/Acupressure.as
+++ b/Scripts/Moves/Acupressure.as
@@ -7,7 +7,7 @@ namespace Gen7{
                 return;
             }
             auto randStat = Statistic(target.Battle.Random.Get(1, 6));
-            target.ChangeStatBoost(randStat, 2);
+            target.ChangeStatBoost(randStat, 2, false);
         };
     }
 }
diff --git a/Scripts/Moves/Automize.as b/Scripts/Moves/Automize.as
index 1b9a2ee..9c1a94c 100644
--- a/Scripts/Moves/Automize.as
+++ b/Scripts/Moves/Automize.as
@@ -3,7 +3,7 @@ namespace Gen7 {
         void OnSecondaryEffect(ExecutingMove@ move, Pokemon@ target, uint8 hit) override {
             auto originalSpeed = move.User.GetBoostedStat(Statistic::Speed);
             auto originalWeight = move.User.Weight;
-            move.User.ChangeStatBoost(Statistic::Speed, 2);
+            move.User.ChangeStatBoost(Statistic::Speed, 2, true);
             if (move.User.GetBoostedStat(Statistic::Speed) != originalSpeed){
                 // This setter function protects against going below 0.1
                 move.User.Weight -= 100;
diff --git a/Scripts/Moves/ChangeAllTargetStats.as b/Scripts/Moves/ChangeAllTargetStats.as
index 76d4c30..48b9852 100644
--- a/Scripts/Moves/ChangeAllTargetStats.as
+++ b/Scripts/Moves/ChangeAllTargetStats.as
@@ -8,11 +8,11 @@ namespace Gen7 {
         }
 
         void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit) override{
-            target.ChangeStatBoost(Statistic::Attack, _amount);
-            target.ChangeStatBoost(Statistic::Defense, _amount);
-            target.ChangeStatBoost(Statistic::SpecialAttack, _amount);
-            target.ChangeStatBoost(Statistic::SpecialDefense, _amount);
-            target.ChangeStatBoost(Statistic::Speed, _amount);
+            target.ChangeStatBoost(Statistic::Attack, _amount, attack.User is target);
+            target.ChangeStatBoost(Statistic::Defense, _amount, attack.User is target);
+            target.ChangeStatBoost(Statistic::SpecialAttack, _amount, attack.User is target);
+            target.ChangeStatBoost(Statistic::SpecialDefense, _amount, attack.User is target);
+            target.ChangeStatBoost(Statistic::Speed, _amount, attack.User is target);
         }
     }
 }
diff --git a/Scripts/Moves/ChangeTargetAtt.as b/Scripts/Moves/ChangeTargetAtt.as
index fc2f810..ad3879d 100644
--- a/Scripts/Moves/ChangeTargetAtt.as
+++ b/Scripts/Moves/ChangeTargetAtt.as
@@ -8,7 +8,7 @@ namespace Gen7 {
         }
 
         void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit) override{
-            target.ChangeStatBoost(Statistic::Attack, _amount);
+            target.ChangeStatBoost(Statistic::Attack, _amount, attack.User is target);
         }
     }
 }
diff --git a/Scripts/Moves/ChangeTargetDef.as b/Scripts/Moves/ChangeTargetDef.as
index 37cb6ca..5875407 100644
--- a/Scripts/Moves/ChangeTargetDef.as
+++ b/Scripts/Moves/ChangeTargetDef.as
@@ -8,7 +8,7 @@ namespace Gen7 {
         }
 
         void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit) override{
-            target.ChangeStatBoost(Statistic::Defense, _amount);
+            target.ChangeStatBoost(Statistic::Defense, _amount, attack.User is target);
         }
     }
 }
diff --git a/Scripts/Moves/ChangeTargetSpDef.as b/Scripts/Moves/ChangeTargetSpDef.as
index 0de45bb..c538a4d 100644
--- a/Scripts/Moves/ChangeTargetSpDef.as
+++ b/Scripts/Moves/ChangeTargetSpDef.as
@@ -8,7 +8,7 @@ namespace Gen7 {
         }
 
         void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit) override{
-            target.ChangeStatBoost(Statistic::SpecialDefense, _amount);
+            target.ChangeStatBoost(Statistic::SpecialDefense, _amount, attack.User is target);
         }
     }
 }
diff --git a/Scripts/Moves/ChangeTargetSpeed.as b/Scripts/Moves/ChangeTargetSpeed.as
index 2c7de4f..63ee601 100644
--- a/Scripts/Moves/ChangeTargetSpeed.as
+++ b/Scripts/Moves/ChangeTargetSpeed.as
@@ -8,7 +8,7 @@ namespace Gen7 {
         }
 
         void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit) override{
-            target.ChangeStatBoost(Statistic::Speed, _amount);
+            target.ChangeStatBoost(Statistic::Speed, _amount, attack.User is target);
         }
     }
 }