diff --git a/src/battle_util.c b/src/battle_util.c
index 37280e12b6..bc97de9362 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -9810,6 +9810,7 @@ bool32 CanFling(u32 battler)
       || (GetConfig(CONFIG_KLUTZ_FLING_INTERACTION) >= GEN_5 && GetBattlerAbility(battler) == ABILITY_KLUTZ)
       || gFieldStatuses & STATUS_FIELD_MAGIC_ROOM
       || gBattleMons[battler].volatiles.embargo
+      || (GetItemTMHMIndex(item) != 0 && GetItemImportance(item) == 1) // don't fling reusable TMs
       || GetFlingPowerFromItemId(item) == 0
       || !CanBattlerGetOrLoseItem(battler, item))
         return FALSE;
diff --git a/test/battle/ability/cheek_pouch.c b/test/battle/ability/cheek_pouch.c
index 0e52ca3fe3..8109dbe17a 100644
--- a/test/battle/ability/cheek_pouch.c
+++ b/test/battle/ability/cheek_pouch.c
@@ -119,7 +119,7 @@ SINGLE_BATTLE_TEST("Cheek Pouch doesn't activate when using Natural Gift")
     }
 }
 
-SINGLE_BATTLE_TEST("Cheek Pouch doesn't activate when using Fling")
+SINGLE_BATTLE_TEST("Cheek Pouch doesn't activate when user uses Fling")
 {
     GIVEN {
         ASSUME(GetMoveEffect(MOVE_FLING) == EFFECT_FLING);
diff --git a/test/battle/ability/corrosion.c b/test/battle/ability/corrosion.c
index 75ac0fc4bb..c1e56ac596 100644
--- a/test/battle/ability/corrosion.c
+++ b/test/battle/ability/corrosion.c
@@ -66,34 +66,7 @@ SINGLE_BATTLE_TEST("Corrosion does not effect poison type damaging moves if the
     }
 }
 
-SINGLE_BATTLE_TEST("Corrosion can poison Poison- and Steel-type targets if it uses Fling while holding a Toxic Orb or a Poison Barb")
-{
-    u16 heldItem;
-
-    PARAMETRIZE { heldItem = ITEM_POISON_BARB; }
-    PARAMETRIZE { heldItem = ITEM_TOXIC_ORB; }
-
-    GIVEN {
-        ASSUME(GetMoveEffect(MOVE_FLING) == EFFECT_FLING);
-        ASSUME(gItemsInfo[ITEM_POISON_BARB].holdEffect == HOLD_EFFECT_TYPE_POWER);
-        ASSUME(gItemsInfo[ITEM_POISON_BARB].secondaryId == TYPE_POISON);
-        ASSUME(gItemsInfo[ITEM_TOXIC_ORB].holdEffect == HOLD_EFFECT_TOXIC_ORB);
-        PLAYER(SPECIES_SALANDIT) { Ability(ABILITY_CORROSION); Item(heldItem); }
-        OPPONENT(SPECIES_ODDISH);
-    } WHEN {
-        TURN { MOVE(player, MOVE_FLING); }
-    } SCENE {
-        ANIMATION(ANIM_TYPE_MOVE, MOVE_FLING, player);
-        HP_BAR(opponent);
-        ANIMATION(ANIM_TYPE_STATUS, B_ANIM_STATUS_PSN, opponent);
-        if (heldItem == ITEM_POISON_BARB)
-            STATUS_ICON(opponent, poison: TRUE);
-        else
-            STATUS_ICON(opponent, badPoison: TRUE);
-    }
-}
-
-SINGLE_BATTLE_TEST("If a Poison- or Steel-type Pokémon with Corrosion holds a Toxic Orb, it will badly poison itself")
+SINGLE_BATTLE_TEST("Corrosion badly poisons its Poison/Steel-type user who holds a Toxic Orb")
 {
     GIVEN {
         ASSUME(gItemsInfo[ITEM_TOXIC_ORB].holdEffect == HOLD_EFFECT_TOXIC_ORB);
@@ -107,7 +80,7 @@ SINGLE_BATTLE_TEST("If a Poison- or Steel-type Pokémon with Corrosion holds a T
     }
 }
 
-SINGLE_BATTLE_TEST("If a Poison- or Steel-type Pokémon with Corrosion poisons a target with Synchronize, Synchronize will not poison Poison- or Steel-type Pokémon")
+SINGLE_BATTLE_TEST("Corrosion can poison a target with Synchronize and Synchronize will not poison Poison- or Steel-type Pokémon")
 {
     u16 move;
     PARAMETRIZE { move = MOVE_TOXIC; }
diff --git a/test/battle/move_effect/fling.c b/test/battle/move_effect/fling.c
index 595938bef5..440d43ccb6 100644
--- a/test/battle/move_effect/fling.c
+++ b/test/battle/move_effect/fling.c
@@ -507,7 +507,7 @@ SINGLE_BATTLE_TEST("Fling deals damage based on items fling power")
     }
 }
 
-SINGLE_BATTLE_TEST("Fling deals damage based on a TM's move power")
+SINGLE_BATTLE_TEST("Fling deals damage based on a TM's move power if reusable or fails if breakable")
 {
     s16 damage[2];
 
@@ -520,33 +520,17 @@ SINGLE_BATTLE_TEST("Fling deals damage based on a TM's move power")
         TURN { MOVE(player, MOVE_FLING); }
         TURN { MOVE(player, MOVE_EGG_BOMB); }
     } SCENE {
-        ANIMATION(ANIM_TYPE_MOVE, MOVE_FLING, player);
-        HP_BAR(opponent, captureDamage: &damage[0]);
+        if (GetItemImportance(ITEM_TM_EARTHQUAKE) == 0) {
+            ANIMATION(ANIM_TYPE_MOVE, MOVE_FLING, player);
+            HP_BAR(opponent, captureDamage: &damage[0]);
+        } else {
+            NOT ANIMATION(ANIM_TYPE_MOVE, MOVE_FLING, player);
+            MESSAGE("But it failed!");
+        }
         ANIMATION(ANIM_TYPE_MOVE, MOVE_EGG_BOMB, player);
         HP_BAR(opponent, captureDamage: &damage[1]);
     } THEN {
-        EXPECT_EQ(damage[0], damage[1]);
-    }
-}
-
-SINGLE_BATTLE_TEST("Fling deals damage based on a TM's move power")
-{
-    s16 damage[2];
-
-    GIVEN {
-        ASSUME(GetMovePower(MOVE_EARTHQUAKE) == GetMovePower(MOVE_EGG_BOMB));
-        ASSUME(!IsSpeciesOfType(SPECIES_WOBBUFFET, TYPE_DARK));
-        PLAYER(SPECIES_WOBBUFFET) { Item(ITEM_TM_EARTHQUAKE); }
-        OPPONENT(SPECIES_HIPPOWDON);
-    } WHEN {
-        TURN { MOVE(player, MOVE_FLING); }
-        TURN { MOVE(player, MOVE_EGG_BOMB); }
-    } SCENE {
-        ANIMATION(ANIM_TYPE_MOVE, MOVE_FLING, player);
-        HP_BAR(opponent, captureDamage: &damage[0]);
-        ANIMATION(ANIM_TYPE_MOVE, MOVE_EGG_BOMB, player);
-        HP_BAR(opponent, captureDamage: &damage[1]);
-    } THEN {
-        EXPECT_EQ(damage[0], damage[1]);
+        if (GetItemImportance(ITEM_TM_EARTHQUAKE) == 0)
+            EXPECT_EQ(damage[0], damage[1]);
     }
 }