diff --git a/src/data/abilities/ability.ts b/src/data/abilities/ability.ts
index 80b05b89d16..9511fc87dc9 100644
--- a/src/data/abilities/ability.ts
+++ b/src/data/abilities/ability.ts
@@ -14,7 +14,6 @@ import {
   SelfStatusMove,
   VariablePowerAttr,
   applyMoveAttrs,
-  VariableMoveTypeAttr,
   RandomMovesetMoveAttr,
   RandomMoveAttr,
   NaturePowerAttr,
@@ -6896,7 +6895,7 @@ export function initAbilities() {
     new Ability(Abilities.STRONG_JAW, 6)
       .attr(MovePowerBoostAbAttr, (user, target, move) => move.hasFlag(MoveFlags.BITING_MOVE), 1.5),
     new Ability(Abilities.REFRIGERATE, 6)
-      .attr(MoveTypeChangeAbAttr, PokemonType.ICE, 1.2, (user, target, move) => move.type === PokemonType.NORMAL && !move.hasAttr(VariableMoveTypeAttr)),
+      .attr(MoveTypeChangeAbAttr, PokemonType.ICE, 1.2, (user, target, move) => move.type === PokemonType.NORMAL),
     new Ability(Abilities.SWEET_VEIL, 6)
       .attr(UserFieldStatusEffectImmunityAbAttr, StatusEffect.SLEEP)
       .attr(PostSummonUserFieldRemoveStatusEffectAbAttr, StatusEffect.SLEEP)
@@ -6920,11 +6919,11 @@ export function initAbilities() {
     new Ability(Abilities.TOUGH_CLAWS, 6)
       .attr(MovePowerBoostAbAttr, (user, target, move) => move.hasFlag(MoveFlags.MAKES_CONTACT), 1.3),
     new Ability(Abilities.PIXILATE, 6)
-      .attr(MoveTypeChangeAbAttr, PokemonType.FAIRY, 1.2, (user, target, move) => move.type === PokemonType.NORMAL && !move.hasAttr(VariableMoveTypeAttr)),
+      .attr(MoveTypeChangeAbAttr, PokemonType.FAIRY, 1.2, (user, target, move) => move.type === PokemonType.NORMAL),
     new Ability(Abilities.GOOEY, 6)
       .attr(PostDefendStatStageChangeAbAttr, (target, user, move) => move.hasFlag(MoveFlags.MAKES_CONTACT), Stat.SPD, -1, false),
     new Ability(Abilities.AERILATE, 6)
-      .attr(MoveTypeChangeAbAttr, PokemonType.FLYING, 1.2, (user, target, move) => move.type === PokemonType.NORMAL && !move.hasAttr(VariableMoveTypeAttr)),
+      .attr(MoveTypeChangeAbAttr, PokemonType.FLYING, 1.2, (user, target, move) => move.type === PokemonType.NORMAL),
     new Ability(Abilities.PARENTAL_BOND, 6)
       .attr(AddSecondStrikeAbAttr, 0.25),
     new Ability(Abilities.DARK_AURA, 6)
@@ -7001,7 +7000,7 @@ export function initAbilities() {
     new Ability(Abilities.TRIAGE, 7)
       .attr(ChangeMovePriorityAbAttr, (pokemon, move) => move.hasFlag(MoveFlags.TRIAGE_MOVE), 3),
     new Ability(Abilities.GALVANIZE, 7)
-      .attr(MoveTypeChangeAbAttr, PokemonType.ELECTRIC, 1.2, (user, target, move) => move.type === PokemonType.NORMAL && !move.hasAttr(VariableMoveTypeAttr)),
+      .attr(MoveTypeChangeAbAttr, PokemonType.ELECTRIC, 1.2, (user, target, move) => move.type === PokemonType.NORMAL),
     new Ability(Abilities.SURGE_SURFER, 7)
       .conditionalAttr(getTerrainCondition(TerrainType.ELECTRIC), StatMultiplierAbAttr, Stat.SPD, 2),
     new Ability(Abilities.SCHOOLING, 7)
diff --git a/src/data/moves/move.ts b/src/data/moves/move.ts
index b0558d303f1..85f3007dd88 100644
--- a/src/data/moves/move.ts
+++ b/src/data/moves/move.ts
@@ -13,7 +13,7 @@ import {
 } from "../battler-tags";
 import { getPokemonNameWithAffix } from "../../messages";
 import type { AttackMoveResult, TurnMove } from "../../field/pokemon";
-import type Pokemon from "../../field/pokemon";
+import Pokemon from "../../field/pokemon";
 import {
   EnemyPokemon,
   FieldPosition,
@@ -4826,7 +4826,12 @@ export class FormChangeItemTypeAttr extends VariableMoveTypeAttr {
       return true;
     }
 
-    return false;
+    // Force move to have its original typing if it changed
+    if (moveType.value === move.type) {
+      return false;
+    }
+    moveType.value = move.type
+    return true;
   }
 }
 
@@ -4977,7 +4982,11 @@ export class WeatherBallTypeAttr extends VariableMoveTypeAttr {
           moveType.value = PokemonType.ICE;
           break;
         default:
-          return false;
+          if (moveType.value === move.type) {
+            return false;
+          }
+          moveType.value = move.type;
+          break;
       }
       return true;
     }
@@ -5025,7 +5034,12 @@ export class TerrainPulseTypeAttr extends VariableMoveTypeAttr {
         moveType.value = PokemonType.PSYCHIC;
         break;
       default:
-        return false;
+        if (moveType.value === move.type) {
+          return false;
+        }
+        // force move to have its original typing if it was changed
+        moveType.value = move.type;
+        break;
     }
     return true;
   }
diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index 492856b4b52..90f0c4275dd 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -9,7 +9,7 @@ import BattleInfo, {
   PlayerBattleInfo,
   EnemyBattleInfo,
 } from "#app/ui/battle-info";
-import type Move from "#app/data/moves/move";
+import Move from "#app/data/moves/move";
 import {
   HighCritAttr,
   HitsTagAttr,
@@ -2583,8 +2583,9 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
    */
   public getMoveType(move: Move, simulated = true): PokemonType {
     const moveTypeHolder = new NumberHolder(move.type);
+    // If the user is terastallized and the move is tera blast, then the move type is the tera type
 
-    applyMoveAttrs(VariableMoveTypeAttr, this, null, move, moveTypeHolder);
+    // Abilities that change the move type go first
     applyPreAttackAbAttrs(
       MoveTypeChangeAbAttr,
       this,
@@ -2593,6 +2594,14 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
       simulated,
       moveTypeHolder,
     );
+    // And then moves that change the move type go
+    applyMoveAttrs(VariableMoveTypeAttr, this, null, move, moveTypeHolder);
+
+    // If the user is terastallized and the move is tera blast, or tera starstorm that is stellar type,
+    // then bypass the check for ion deluge
+    if (this.isTerastallized && (move.id === Moves.TERA_BLAST || move.id === Moves.TERA_STARSTORM && moveTypeHolder.value === PokemonType.STELLAR)) {
+      return moveTypeHolder.value as PokemonType;
+    }
 
     globalScene.arena.applyTags(
       ArenaTagType.ION_DELUGE,