diff --git a/src/data/ability.ts b/src/data/ability.ts
index bb1cc50b6..8952e8c14 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -1731,10 +1731,30 @@ export class ProtectStatAbAttr extends PreStatChangeAbAttr {
 }
 
 /**
- * Extends from {@link ProtectStatAbAttr} to allow abilities to mark that they can protect allies from stat changes.
- * Requires the Affected Pokemon to then check if ally has any ability with this attribute and apply the effect.
+ * Attrbiute class to allow abilities to mark that they can protect allies from stat reductions.
  */
-export class AllyProtectStatAbAttr extends ProtectStatAbAttr { }
+export class AllyProtectStatAbAttr extends PreStatChangeAbAttr {
+  private protectedStat: BattleStat;
+
+  constructor(protectedStat?: BattleStat) {
+    super();
+
+    this.protectedStat = protectedStat;
+  }
+
+  applyPreStatChange(pokemon: Pokemon, passive: boolean, stat: BattleStat, cancelled: Utils.BooleanHolder, args: any[]): boolean {
+    if (this.protectedStat === undefined || stat === this.protectedStat) {
+      cancelled.value = true;
+      return true;
+    }
+    
+    return false;
+  }
+
+  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+    return getPokemonMessage(pokemon, `'s ${abilityName}\nprevents lowering its ${this.protectedStat !== undefined ? getBattleStatName(this.protectedStat) : 'stats'}!`);
+  }
+}
 
 export class PreSetStatusAbAttr extends AbAttr {
   applyPreSetStatus(pokemon: Pokemon, passive: boolean, effect: StatusEffect, cancelled: Utils.BooleanHolder, args: any[]): boolean | Promise<boolean> {
@@ -1766,10 +1786,30 @@ export class StatusEffectImmunityAbAttr extends PreSetStatusAbAttr {
 }
 
 /**
- * Extends from {@link StatusEffectImmunityAbAttr} to allow abilities to mark that they can protect allies from status effects.
- * Requires the Affected Pokemon to then check if ally has any ability with this attribute and apply the effect.
+ * Attrbiute class to allow abilities to mark that they can protect allies from status effects.
  */
-export class AllyStatusEffectImmunityAbAttr extends StatusEffectImmunityAbAttr { }
+export class AllyStatusEffectImmunityAbAttr extends PreSetStatusAbAttr {
+  private immuneEffects: StatusEffect[];
+
+  constructor(...immuneEffects: StatusEffect[]) {
+    super();
+
+    this.immuneEffects = immuneEffects;
+  }
+
+  applyPreSetStatus(pokemon: Pokemon, passive: boolean, effect: StatusEffect, cancelled: Utils.BooleanHolder, args: any[]): boolean {
+    if (!this.immuneEffects.length || this.immuneEffects.indexOf(effect) > -1) {
+      cancelled.value = true;
+      return true;
+    }
+
+    return false;
+  }
+
+  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+    return getPokemonMessage(pokemon, `'s ${abilityName}\nprevents ${this.immuneEffects.length ? getStatusEffectDescriptor(args[0] as StatusEffect) : 'status problems'}!`);
+  }
+}
 
 export class PreApplyBattlerTagAbAttr extends AbAttr {
   applyPreApplyBattlerTag(pokemon: Pokemon, passive: boolean, tag: BattlerTag, cancelled: Utils.BooleanHolder, args: any[]): boolean | Promise<boolean> {
@@ -1801,10 +1841,30 @@ export class BattlerTagImmunityAbAttr extends PreApplyBattlerTagAbAttr {
 }
 
 /**
- * Extends from {@link BattlerTagImmunityAbAttr} to allow abilities to mark that they can protect allies from battler tags.
- * Requires the Affected Pokemon to then check if ally has any ability with this attribute and apply the effect.
+ * Attrbiute class to allow abilities to mark that they can protect allies from battler tags
  */
-export class AllyBattlerTagImmunityAbAttr extends BattlerTagImmunityAbAttr { }
+export class AllyBattlerTagImmunityAbAttr extends PreApplyBattlerTagAbAttr {
+  private immuneTagType: BattlerTagType;
+
+  constructor(immuneTagType: BattlerTagType) {
+    super();
+
+    this.immuneTagType = immuneTagType;
+  }
+
+  applyPreApplyBattlerTag(pokemon: Pokemon, passive: boolean, tag: BattlerTag, cancelled: Utils.BooleanHolder, args: any[]): boolean {
+    if (tag.tagType === this.immuneTagType) {
+      cancelled.value = true;
+      return true;
+    }
+
+    return false;
+  }
+
+  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+    return getPokemonMessage(pokemon, `'s ${abilityName}\nprevents ${(args[0] as BattlerTag).getDescriptor()}!`);
+  }
+}
 
 export class BlockCritAbAttr extends AbAttr {
   apply(pokemon: Pokemon, passive: boolean, cancelled: Utils.BooleanHolder, args: any[]): boolean {