diff --git a/include/battle_ai_util.h b/include/battle_ai_util.h
index 94d895e8fd..04920cb3a2 100644
--- a/include/battle_ai_util.h
+++ b/include/battle_ai_util.h
@@ -205,5 +205,6 @@ bool32 AI_ShouldCopyStatChanges(u32 battlerAtk, u32 battlerDef);
 bool32 AI_ShouldSetUpHazards(u32 battlerAtk, u32 battlerDef, struct AiLogicData *aiData);
 void IncreaseTidyUpScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
 bool32 AI_ShouldSpicyExtract(u32 battlerAtk, u32 battlerAtkPartner, u32 move, struct AiLogicData *aiData);
+void IncreaseSubstituteMoveScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score);
 
 #endif //GUARD_BATTLE_AI_UTIL_H
diff --git a/src/battle_ai_main.c b/src/battle_ai_main.c
index 55b38f7ad7..e6e35a3388 100644
--- a/src/battle_ai_main.c
+++ b/src/battle_ai_main.c
@@ -1531,6 +1531,16 @@ static s32 AI_CheckBadMove(u32 battlerAtk, u32 battlerDef, u32 move, s32 score)
             else if (HasSubstituteIgnoringMove(battlerDef))
                 ADJUST_SCORE(-8);
             break;
+        case EFFECT_SHED_TAIL:
+            if (CountUsablePartyMons(battlerAtk) == 0)
+                ADJUST_SCORE(-10);
+            if (gBattleMons[battlerAtk].status2 & STATUS2_SUBSTITUTE || aiData->abilities[battlerDef] == ABILITY_INFILTRATOR)
+                ADJUST_SCORE(-8);
+            else if (aiData->hpPercents[battlerAtk] <= 50)
+                ADJUST_SCORE(-10);
+            else if (HasSubstituteIgnoringMove(battlerDef))
+                ADJUST_SCORE(-8);
+            break;
         case EFFECT_LEECH_SEED:
             if (gStatuses3[battlerDef] & STATUS3_LEECHSEED
              || IS_BATTLER_OF_TYPE(battlerDef, TYPE_GRASS)
@@ -3582,28 +3592,8 @@ static u32 AI_CalcMoveEffectScore(u32 battlerAtk, u32 battlerDef, u32 move)
         IncreaseParalyzeScore(battlerAtk, battlerDef, move, &score);
         break;
     case EFFECT_SUBSTITUTE:
-        if (HasAnyKnownMove(battlerDef) && GetBestDmgFromBattler(battlerDef, battlerAtk) < gBattleMons[battlerAtk].maxHP / 4)
-            ADJUST_SCORE(GOOD_EFFECT);
-        if (gStatuses3[battlerDef] & STATUS3_PERISH_SONG)
-            ADJUST_SCORE(GOOD_EFFECT);
-        if (gBattleMons[battlerDef].status1 & STATUS1_SLEEP)
-            ADJUST_SCORE(GOOD_EFFECT);
-        else if (gBattleMons[battlerDef].status1 & (STATUS1_BURN | STATUS1_PSN_ANY | STATUS1_FROSTBITE))
-            ADJUST_SCORE(DECENT_EFFECT);
-        // TODO:
-        // if (IsPredictedToSwitch(battlerDef, battlerAtk)
-        //     ADJUST_SCORE(DECENT_EFFECT);
-        if (HasMoveEffect(battlerDef, EFFECT_SLEEP)
-          || HasMoveEffect(battlerDef, EFFECT_TOXIC)
-          || HasMoveEffect(battlerDef, EFFECT_POISON)
-          || HasMoveEffect(battlerDef, EFFECT_PARALYZE)
-          || HasMoveEffect(battlerDef, EFFECT_WILL_O_WISP)
-          || HasMoveEffect(battlerDef, EFFECT_CONFUSE)
-          || HasMoveEffect(battlerDef, EFFECT_LEECH_SEED))
-            ADJUST_SCORE(GOOD_EFFECT);
-        if (!gBattleMons[battlerDef].status2 & (STATUS2_WRAPPED | STATUS2_ESCAPE_PREVENTION && aiData->hpPercents[battlerAtk] > 70))
-            ADJUST_SCORE(WEAK_EFFECT);
-        break;
+    case EFFECT_SHED_TAIL:
+        IncreaseSubstituteMoveScore(battlerAtk, battlerDef, move, &score);
     case EFFECT_MIMIC:
         if (AI_IsFaster(battlerAtk, battlerDef, move))
         {
diff --git a/src/battle_ai_util.c b/src/battle_ai_util.c
index 8c1cb578ed..0ff5050e38 100644
--- a/src/battle_ai_util.c
+++ b/src/battle_ai_util.c
@@ -3987,3 +3987,42 @@ bool32 AI_ShouldSpicyExtract(u32 battlerAtk, u32 battlerAtkPartner, u32 move, st
          && AI_IsFaster(battlerAtk, battlerAtkPartner, TRUE)
          && HasMoveWithCategory(battlerAtkPartner, DAMAGE_CATEGORY_PHYSICAL));
 }
+
+void IncreaseSubstituteMoveScore(u32 battlerAtk, u32 battlerDef, u32 move, s32 *score)
+{
+    if (gMovesInfo[move].effect == EFFECT_SUBSTITUTE) // Substitute specific
+    {
+        if (HasAnyKnownMove(battlerDef) && GetBestDmgFromBattler(battlerDef, battlerAtk) < gBattleMons[battlerAtk].maxHP / 4)
+            ADJUST_SCORE_PTR(GOOD_EFFECT);
+    }
+    else if (gMovesInfo[move].effect == EFFECT_SHED_TAIL) // Shed Tail specific
+    {
+        if ((ShouldPivot(battlerAtk, battlerDef, AI_DATA->abilities[battlerDef], move, AI_THINKING_STRUCT->movesetIndex))
+        && (HasAnyKnownMove(battlerDef) && (GetBestDmgFromBattler(battlerDef, battlerAtk) < gBattleMons[battlerAtk].maxHP / 2)))
+            ADJUST_SCORE_PTR(BEST_EFFECT);
+    }
+
+    if (gStatuses3[battlerDef] & STATUS3_PERISH_SONG)
+        ADJUST_SCORE_PTR(GOOD_EFFECT);
+
+    if (gBattleMons[battlerDef].status1 & STATUS1_SLEEP)
+        ADJUST_SCORE_PTR(GOOD_EFFECT);
+    else if (gBattleMons[battlerDef].status1 & (STATUS1_BURN | STATUS1_PSN_ANY | STATUS1_FROSTBITE))
+        ADJUST_SCORE_PTR(DECENT_EFFECT);
+
+    // TODO:
+    // if (IsPredictedToSwitch(battlerDef, battlerAtk)
+    //     ADJUST_SCORE_PTR(DECENT_EFFECT);
+
+    if (HasMoveEffect(battlerDef, EFFECT_SLEEP)
+     || HasMoveEffect(battlerDef, EFFECT_TOXIC)
+     || HasMoveEffect(battlerDef, EFFECT_POISON)
+     || HasMoveEffect(battlerDef, EFFECT_PARALYZE)
+     || HasMoveEffect(battlerDef, EFFECT_WILL_O_WISP)
+     || HasMoveEffect(battlerDef, EFFECT_CONFUSE)
+     || HasMoveEffect(battlerDef, EFFECT_LEECH_SEED))
+        ADJUST_SCORE_PTR(GOOD_EFFECT);
+
+    if (AI_DATA->hpPercents[battlerAtk] > 70)
+        ADJUST_SCORE_PTR(WEAK_EFFECT);
+}
diff --git a/test/battle/move_effect/shed_tail.c b/test/battle/move_effect/shed_tail.c
index 55a8950d00..d69993b88b 100644
--- a/test/battle/move_effect/shed_tail.c
+++ b/test/battle/move_effect/shed_tail.c
@@ -85,3 +85,16 @@ SINGLE_BATTLE_TEST("Shed Tail's HP cost doesn't trigger effects that trigger on
         NOT MESSAGE("Wobbuffet's Air Balloon popped!");
     }
 }
+
+AI_SINGLE_BATTLE_TEST("AI will use Shed Tail to pivot to another mon while in damage stalemate with player")
+{
+    GIVEN {
+        AI_FLAGS(AI_FLAG_CHECK_BAD_MOVE | AI_FLAG_CHECK_VIABILITY | AI_FLAG_TRY_TO_FAINT);
+        PLAYER(SPECIES_WOBBUFFET) { Speed(100); Ability(ABILITY_RUN_AWAY); Moves(MOVE_TACKLE, MOVE_CELEBRATE); }
+        OPPONENT(SPECIES_WOBBUFFET) { Speed(50); Ability(ABILITY_RUN_AWAY); Moves(MOVE_CONFUSION, MOVE_SHED_TAIL); }
+        OPPONENT(SPECIES_SCIZOR) { Speed(101); Moves(MOVE_CELEBRATE, MOVE_X_SCISSOR); }
+    } WHEN {
+        TURN { MOVE(player, MOVE_TACKLE); EXPECT_MOVE(opponent, MOVE_CONFUSION); }
+        TURN { MOVE(player, MOVE_TACKLE); EXPECT_MOVE(opponent, MOVE_SHED_TAIL); }
+    }
+}