diff --git a/src/main/java/com/wenxin2/marioverse/Marioverse.java b/src/main/java/com/wenxin2/marioverse/Marioverse.java
index 87c964ef..3a7d5f71 100644
--- a/src/main/java/com/wenxin2/marioverse/Marioverse.java
+++ b/src/main/java/com/wenxin2/marioverse/Marioverse.java
@@ -4,6 +4,7 @@
 import com.mojang.serialization.MapCodec;
 import com.wenxin2.marioverse.event_handlers.MarioverseEventHandlers;
 import com.wenxin2.marioverse.event_handlers.RegistryEventHandlers;
+import com.wenxin2.marioverse.init.AttributesRegistry;
 import com.wenxin2.marioverse.init.BlockEntityRegistry;
 import com.wenxin2.marioverse.init.BlockRegistry;
 import com.wenxin2.marioverse.init.ConfigRegistry;
@@ -18,6 +19,7 @@
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.sounds.SoundEvent;
 import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.ai.attributes.Attribute;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.neoforged.api.distmarker.Dist;
@@ -45,6 +47,7 @@ public class Marioverse {
     public static final DeferredRegister<MenuType<?>> MENUS = DeferredRegister.create(Registries.MENU, Marioverse.MOD_ID);
     public static final DeferredRegister<ParticleType<?>> PARTICLES = DeferredRegister.create(Registries.PARTICLE_TYPE, Marioverse.MOD_ID);
     public static final DeferredRegister<SoundEvent> SOUNDS = DeferredRegister.create(Registries.SOUND_EVENT, Marioverse.MOD_ID);
+    public static final DeferredRegister<Attribute> ATTRIBUTES = DeferredRegister.create(Registries.ATTRIBUTE, Marioverse.MOD_ID);
 
     public Marioverse(IEventBus bus, Dist dist, ModContainer container) {
         BLOCKS.register(bus);
@@ -65,6 +68,7 @@ public Marioverse(IEventBus bus, Dist dist, ModContainer container) {
         MenuRegistry.init();
         ParticleRegistry.init();
         SoundRegistry.init();
+        AttributesRegistry.init();
         ConfigRegistry.register(container);
 
         if (dist.isClient()) {
diff --git a/src/main/java/com/wenxin2/marioverse/event_handlers/MarioverseEventHandlers.java b/src/main/java/com/wenxin2/marioverse/event_handlers/MarioverseEventHandlers.java
index 1964bb67..99eb5686 100644
--- a/src/main/java/com/wenxin2/marioverse/event_handlers/MarioverseEventHandlers.java
+++ b/src/main/java/com/wenxin2/marioverse/event_handlers/MarioverseEventHandlers.java
@@ -6,6 +6,7 @@
 import com.wenxin2.marioverse.entities.FireGoombaEntity;
 import com.wenxin2.marioverse.entities.GoombaEntity;
 import com.wenxin2.marioverse.entities.ai.goals.ShootBouncingFireballGoal;
+import com.wenxin2.marioverse.init.AttributesRegistry;
 import com.wenxin2.marioverse.init.ConfigRegistry;
 import com.wenxin2.marioverse.init.KeybindRegistry;
 import com.wenxin2.marioverse.init.SoundRegistry;
@@ -28,6 +29,7 @@
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.Mob;
 import net.minecraft.world.entity.ai.attributes.AttributeInstance;
+import net.minecraft.world.entity.ai.attributes.AttributeModifier;
 import net.minecraft.world.entity.ai.attributes.Attributes;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
@@ -127,6 +129,13 @@ public static void onEntityDamaged(LivingIncomingDamageEvent event) {
                         || ScaleTypes.WIDTH.getScaleData(event.getEntity()).getTargetScale() > 0.75F)*/) {
 //                    ScaleTypes.HEIGHT.getScaleData(event.getEntity()).setTargetScale(0.5F);
 //                    ScaleTypes.WIDTH.getScaleData(event.getEntity()).setTargetScale(0.75F);
+
+                    AttributeInstance scaleAttribute = player.getAttribute(Attributes.SCALE);
+                    if (scaleAttribute != null) {
+                        if (player.getAttribute(Attributes.SCALE) != null
+                                && !player.getAttribute(Attributes.SCALE).hasModifier(AttributesRegistry.SCALE_MODIFIER.id()))
+                            scaleAttribute.addPermanentModifier(AttributesRegistry.SCALE_MODIFIER);
+                    }
                     world.playSound(null, player.blockPosition(), SoundRegistry.DAMAGE_TAKEN.get(),
                             SoundSource.PLAYERS, 1.0F, 1.0F);
                 }
@@ -188,6 +197,13 @@ public static void onEntityDamaged(LivingIncomingDamageEvent event) {
                         || ScaleTypes.WIDTH.getScaleData(event.getEntity()).getTargetScale() > 0.75F)*/) {
 //                    ScaleTypes.HEIGHT.getScaleData(event.getEntity()).setTargetScale(0.5F);
 //                    ScaleTypes.WIDTH.getScaleData(event.getEntity()).setTargetScale(0.75F);
+
+                    AttributeInstance scaleAttribute = entity.getAttribute(Attributes.SCALE);
+                    if (scaleAttribute != null) {
+                        if (entity.getAttribute(Attributes.SCALE) != null
+                                && !entity.getAttribute(Attributes.SCALE).hasModifier(AttributesRegistry.SCALE_MODIFIER.id()))
+                            scaleAttribute.addPermanentModifier(AttributesRegistry.SCALE_MODIFIER);
+                    }
                     world.playSound(null, entity.blockPosition(), SoundRegistry.DAMAGE_TAKEN.get(),
                             SoundSource.HOSTILE, 1.0F, 1.0F);
                 }
@@ -253,12 +269,24 @@ public static void onEntityHeal(LivingHealEvent event) {
                         || ScaleTypes.WIDTH.getScaleData(entity).getTargetScale() < 1.0F)*/) {
 //                    ScaleTypes.HEIGHT.getScaleData(entity).setTargetScale(1.0F);
 //                    ScaleTypes.WIDTH.getScaleData(entity).setTargetScale(1.0F);
+                    AttributeInstance scaleAttribute = player.getAttribute(Attributes.SCALE);
+                    if (scaleAttribute != null) {
+                        if (player.getAttribute(Attributes.SCALE) != null
+                                && !player.getAttribute(Attributes.SCALE).hasModifier(AttributesRegistry.SCALE_MODIFIER.id()))
+                            scaleAttribute.removeModifier(AttributesRegistry.SCALE_MODIFIER);
+                    }
                 }
             } else if (tag.getBoolean("marioverse:has_mushroom") && ConfigRegistry.DAMAGE_SHRINKS_PLAYERS.get()
                         /*&& (ScaleTypes.HEIGHT.getScaleData(entity).getTargetScale() < 1.0F
                         || ScaleTypes.WIDTH.getScaleData(entity).getTargetScale() < 1.0F)*/) {
 //                ScaleTypes.HEIGHT.getScaleData(entity).setTargetScale(1.0F);
 //                ScaleTypes.WIDTH.getScaleData(entity).setTargetScale(1.0F);
+                AttributeInstance scaleAttribute = player.getAttribute(Attributes.SCALE);
+                if (scaleAttribute != null) {
+                    if (player.getAttribute(Attributes.SCALE) != null
+                            && !player.getAttribute(Attributes.SCALE).hasModifier(AttributesRegistry.SCALE_MODIFIER.id()))
+                        scaleAttribute.removeModifier(AttributesRegistry.SCALE_MODIFIER);
+                }
             }
         } else if (entity instanceof LivingEntity livingEntity) {
             if (livingEntity.getHealth() > livingEntity.getMaxHealth() * ConfigRegistry.HEALTH_SHRINK_MOBS.get()) {
@@ -268,12 +296,24 @@ public static void onEntityHeal(LivingHealEvent event) {
                         || ScaleTypes.WIDTH.getScaleData(entity).getTargetScale() < 1.0F)*/) {
 //                    ScaleTypes.HEIGHT.getScaleData(entity).setTargetScale(1.0F);
 //                    ScaleTypes.WIDTH.getScaleData(entity).setTargetScale(1.0F);
+                    AttributeInstance scaleAttribute = livingEntity.getAttribute(Attributes.SCALE);
+                    if (scaleAttribute != null) {
+                        if (livingEntity.getAttribute(Attributes.SCALE) != null
+                                && !livingEntity.getAttribute(Attributes.SCALE).hasModifier(AttributesRegistry.SCALE_MODIFIER.id()))
+                            scaleAttribute.removeModifier(AttributesRegistry.SCALE_MODIFIER);
+                    }
                 }
             } else if (tag.getBoolean("marioverse:has_mushroom") && ConfigRegistry.DAMAGE_SHRINKS_PLAYERS.get()
                         /*&& (ScaleTypes.HEIGHT.getScaleData(entity).getTargetScale() < 1.0F
                         || ScaleTypes.WIDTH.getScaleData(entity).getTargetScale() < 1.0F)*/) {
 //                ScaleTypes.HEIGHT.getScaleData(entity).setTargetScale(1.0F);
 //                ScaleTypes.WIDTH.getScaleData(entity).setTargetScale(1.0F);
+                AttributeInstance scaleAttribute = livingEntity.getAttribute(Attributes.SCALE);
+                if (scaleAttribute != null) {
+                    if (livingEntity.getAttribute(Attributes.SCALE) != null
+                            && !livingEntity.getAttribute(Attributes.SCALE).hasModifier(AttributesRegistry.SCALE_MODIFIER.id()))
+                        scaleAttribute.removeModifier(AttributesRegistry.SCALE_MODIFIER);
+                }
             }
         }
     }
diff --git a/src/main/java/com/wenxin2/marioverse/init/AttributesRegistry.java b/src/main/java/com/wenxin2/marioverse/init/AttributesRegistry.java
new file mode 100644
index 00000000..ed3157f1
--- /dev/null
+++ b/src/main/java/com/wenxin2/marioverse/init/AttributesRegistry.java
@@ -0,0 +1,16 @@
+package com.wenxin2.marioverse.init;
+
+import com.wenxin2.marioverse.Marioverse;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.entity.ai.attributes.Attribute;
+import net.minecraft.world.entity.ai.attributes.AttributeModifier;
+import net.minecraft.world.entity.ai.attributes.RangedAttribute;
+import net.neoforged.neoforge.registries.DeferredHolder;
+
+public class AttributesRegistry {
+    public static AttributeModifier SCALE_MODIFIER = new AttributeModifier(
+            ResourceLocation.fromNamespaceAndPath(Marioverse.MOD_ID, "scale_modifier"),
+                            -0.5, AttributeModifier.Operation.ADD_MULTIPLIED_BASE);
+
+    public static void init() {}
+}