diff --git a/include/battle_util.h b/include/battle_util.h
index c799d9a58b..fb74610d0c 100644
--- a/include/battle_util.h
+++ b/include/battle_util.h
@@ -161,7 +161,7 @@ void TryToApplyMimicry(u8 battlerId, bool8 various);
 void TryToRevertMimicry(void);
 void RestoreBattlerOriginalTypes(u8 battlerId);
 
-// ability checks
+// Ability checks
 bool32 IsRolePlayBannedAbilityAtk(u16 ability);
 bool32 IsRolePlayBannedAbility(u16 ability);
 bool32 IsSkillSwapBannedAbility(u16 ability);
diff --git a/include/constants/pokemon.h b/include/constants/pokemon.h
index 4e776e592b..959148e6c8 100644
--- a/include/constants/pokemon.h
+++ b/include/constants/pokemon.h
@@ -308,6 +308,7 @@
 #define FLAG_DMG_UNGROUNDED_IGNORE_TYPE_IF_FLYING (1 << 24) // Makes a Ground type move do 1x damage to flying and levitating targets
 #define FLAG_THAW_USER                            (1 << 25)
 #define FLAG_HIT_IN_SUBSTITUTE                    (1 << 26) // Hyperspace Fury
+#define FLAG_TWO_STRIKES                          (1 << 27) // A move with this flag will strike twice, and may apply its effect on each hit
 
 // Split defines.
 #define SPLIT_PHYSICAL  0x0
diff --git a/src/battle_ai_util.c b/src/battle_ai_util.c
index 9640df2b40..4fd01418c2 100644
--- a/src/battle_ai_util.c
+++ b/src/battle_ai_util.c
@@ -733,28 +733,45 @@ s32 AI_CalcDamage(u16 move, u8 battlerAtk, u8 battlerDef)
     else
         dmg = (critDmg + normalDmg * (critChance - 1)) / critChance;
 
-    // handle dynamic move damage
+    // Handle dynamic move damage
     switch (gBattleMoves[move].effect)
     {
     case EFFECT_LEVEL_DAMAGE:
     case EFFECT_PSYWAVE:
-        //psywave's expected damage is equal to the user's level
-        dmg = gBattleMons[battlerAtk].level;
+        dmg = gBattleMons[battlerAtk].level * (AI_DATA->atkAbility == ABILITY_PARENTAL_BOND ? 2 : 1);
         break;
     case EFFECT_DRAGON_RAGE:
-        dmg = 40;
+        dmg = 40 * (AI_DATA->atkAbility == ABILITY_PARENTAL_BOND ? 2 : 1);
         break;
     case EFFECT_SONICBOOM:
-        dmg = 20;
+        dmg = 20 * (AI_DATA->atkAbility == ABILITY_PARENTAL_BOND ? 2 : 1);
         break;
-    //case EFFECT_METAL_BURST:
-    //case EFFECT_COUNTER:
-    default:
-        //do not add the random factor, it's an average case analysis
-        //dmg *= (100 - (Random() % 10)) / 100;   // add random factor
+    case EFFECT_MULTI_HIT:
+        dmg *= (AI_DATA->atkAbility == ABILITY_SKILL_LINK ? 5 : 3);
+        break;
+    case EFFECT_TRIPLE_KICK:
+        dmg *= (AI_DATA->atkAbility == ABILITY_SKILL_LINK ? 6 : 5);
+        break;
+    case EFFECT_ENDEAVOR:
+        // If target has less HP than user, Endeavor does no damage
+        dmg = max(0, gBattleMons[battlerDef].hp - gBattleMons[battlerAtk].hp);
+        break;
+    case EFFECT_SUPER_FANG:
+        dmg = (AI_DATA->atkAbility == ABILITY_PARENTAL_BOND
+            ? max(2, gBattleMons[battlerDef].hp * 3 / 4)
+            : max(1, gBattleMons[battlerDef].hp / 2));
+        break;
+    case EFFECT_FINAL_GAMBIT:
+        dmg = gBattleMons[battlerAtk].hp;
         break;
     }
 
+    // Handle other multi-strike moves
+    if (gBattleMoves[move].flags & FLAG_TWO_STRIKES)
+        dmg *= 2;
+    else if (move == MOVE_SURGING_STRIKES || (move == MOVE_WATER_SHURIKEN && gBattleMons[battlerAtk].species == SPECIES_GRENINJA_ASH))
+        dmg *= 3;
+
     RestoreBattlerData(battlerAtk);
     RestoreBattlerData(battlerDef);
 
@@ -2606,7 +2623,6 @@ bool32 AI_CanSleep(u8 battler, u16 ability)
 bool32 AI_CanPutToSleep(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u16 partnerMove)
 {
     if (!AI_CanSleep(battlerDef, defAbility)
-      || AI_GetMoveEffectiveness(move, battlerAtk, battlerDef) == AI_EFFECTIVENESS_x0
       || DoesSubstituteBlockMove(battlerAtk, battlerDef, move)
       || PartnerMoveEffectIsStatusSameTarget(BATTLE_PARTNER(battlerAtk), battlerDef, partnerMove))   // shouldn't try to sleep mon that partner is trying to make sleep
         return FALSE;
@@ -2654,7 +2670,7 @@ bool32 AI_CanPoison(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u16
     return TRUE;
 }
 
-static bool32 CanBeParayzed(u8 battler, u16 ability)
+static bool32 AI_CanBeParalyzed(u8 battler, u16 ability)
 {
     if (ability == ABILITY_LIMBER
       || IS_BATTLER_OF_TYPE(battler, TYPE_ELECTRIC)
@@ -2666,7 +2682,7 @@ static bool32 CanBeParayzed(u8 battler, u16 ability)
 
 bool32 AI_CanParalyze(u8 battlerAtk, u8 battlerDef, u16 defAbility, u16 move, u16 partnerMove)
 {
-    if (!CanBeParayzed(battlerDef, defAbility)
+    if (!AI_CanBeParalyzed(battlerDef, defAbility)
       || AI_GetMoveEffectiveness(move, battlerAtk, battlerDef) == AI_EFFECTIVENESS_x0
       || gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_SAFEGUARD
       || DoesSubstituteBlockMove(battlerAtk, battlerDef, move)
diff --git a/src/data/battle_moves.h b/src/data/battle_moves.h
index 97d61202a4..f4ace39155 100644
--- a/src/data/battle_moves.h
+++ b/src/data/battle_moves.h
@@ -378,7 +378,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -649,7 +649,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 20,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_SHEER_FORCE_BOOST,
+        .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_SHEER_FORCE_BOOST | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -2460,7 +2460,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -7267,7 +7267,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -8367,7 +8367,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -8575,7 +8575,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -10726,9 +10726,9 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
     [MOVE_DOUBLE_IRON_BASH] =
     {
         #if B_UPDATED_MOVE_DATA >= GEN_8
-            .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_IRON_FIST_BOOST | FLAG_SHEER_FORCE_BOOST,
+            .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_IRON_FIST_BOOST | FLAG_SHEER_FORCE_BOOST | FLAG_TWO_STRIKES,
         #else
-            .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_DMG_MINIMIZE | FLAG_IRON_FIST_BOOST | FLAG_SHEER_FORCE_BOOST,
+            .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_DMG_MINIMIZE | FLAG_IRON_FIST_BOOST | FLAG_SHEER_FORCE_BOOST | FLAG_TWO_STRIKES,
         #endif
         .effect = EFFECT_DOUBLE_IRON_BASH,
         .power = 60,
@@ -10850,7 +10850,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },
 
@@ -11480,7 +11480,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT] =
         .secondaryEffectChance = 0,
         .target = MOVE_TARGET_SELECTED,
         .priority = 0,
-        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED,
+        .flags = FLAG_MAKES_CONTACT | FLAG_PROTECT_AFFECTED | FLAG_MIRROR_MOVE_AFFECTED | FLAG_KINGS_ROCK_AFFECTED | FLAG_TWO_STRIKES,
         .split = SPLIT_PHYSICAL,
     },