diff --git a/src/main/java/io/gitlab/jfronny/libjf/data/ShulkerIllegalChecker.java b/src/main/java/io/gitlab/jfronny/libjf/data/ShulkerIllegalChecker.java
deleted file mode 100644
index 30cc069..0000000
--- a/src/main/java/io/gitlab/jfronny/libjf/data/ShulkerIllegalChecker.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package io.gitlab.jfronny.libjf.data;
-
-import net.fabricmc.fabric.api.tag.TagRegistry;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemStack;
-import net.minecraft.tag.Tag;
-import net.minecraft.util.Identifier;
-import io.gitlab.jfronny.libjf.Libjf;
-
-public class ShulkerIllegalChecker {
-    public static Tag<Item> SHULKER_ILLEGAL = TagRegistry.item(new Identifier(Libjf.MOD_ID, "shulker_boxes_illegal"));
-    public static boolean isAllowed(ItemStack stack) {
-        //Tag
-        return !SHULKER_ILLEGAL.contains(stack.getItem());
-        //Should be equal to
-        //!(stack.getItem() instanceof BackpackTrinket) && !(Block.getBlockFromItem(stack.getItem()) instanceof ShulkerBoxBlock);
-    }
-}
diff --git a/src/main/java/io/gitlab/jfronny/libjf/data/Tags.java b/src/main/java/io/gitlab/jfronny/libjf/data/Tags.java
new file mode 100644
index 0000000..d085b2f
--- /dev/null
+++ b/src/main/java/io/gitlab/jfronny/libjf/data/Tags.java
@@ -0,0 +1,12 @@
+package io.gitlab.jfronny.libjf.data;
+
+import net.fabricmc.fabric.api.tag.TagFactory;
+import net.minecraft.item.Item;
+import net.minecraft.tag.Tag;
+import net.minecraft.util.Identifier;
+import io.gitlab.jfronny.libjf.Libjf;
+
+public class Tags {
+    public static Tag<Item> SHULKER_ILLEGAL = TagFactory.ITEM.create(new Identifier(Libjf.MOD_ID, "shulker_boxes_illegal"));
+    public static Tag<Item> OVERPOWERED = TagFactory.ITEM.create(new Identifier(Libjf.MOD_ID, "overpowered"));
+}
diff --git a/src/main/java/io/gitlab/jfronny/libjf/mixin/EntityMixin.java b/src/main/java/io/gitlab/jfronny/libjf/mixin/EntityMixin.java
new file mode 100644
index 0000000..b4f82e7
--- /dev/null
+++ b/src/main/java/io/gitlab/jfronny/libjf/mixin/EntityMixin.java
@@ -0,0 +1,47 @@
+package io.gitlab.jfronny.libjf.mixin;
+
+import io.gitlab.jfronny.libjf.data.Tags;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.damage.DamageSource;
+import net.minecraft.item.ItemStack;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Mixin(Entity.class)
+public class EntityMixin {
+    @Inject(at = @At("HEAD"), method = "isInvulnerable()Z", cancellable = true)
+    public void setInvulnerable(CallbackInfoReturnable<Boolean> info) {
+        if (libjf$opArmor()) {
+            info.setReturnValue(true);
+        }
+    }
+
+    @Inject(at = @At("HEAD"), method = "isInvulnerableTo(Lnet/minecraft/entity/damage/DamageSource;)Z", cancellable = true)
+    public void setInvulnerable(DamageSource source, CallbackInfoReturnable<Boolean> info) {
+        if (libjf$opArmor()) {
+            info.setReturnValue(true);
+        }
+    }
+
+    @Inject(at = @At("HEAD"), method = "kill()V", cancellable = true)
+    public void setKillable(CallbackInfo info) {
+        if (libjf$opArmor()) {
+            info.cancel();
+        }
+    }
+
+    private boolean libjf$opArmor() {
+        Entity entity = (Entity) (Object) this;
+        AtomicInteger armorCount = new AtomicInteger();
+        for (ItemStack s : entity.getArmorItems()) {
+            if (Tags.OVERPOWERED.contains(s.getItem()))
+                armorCount.getAndIncrement();
+        }
+        return armorCount.get() >= 4;
+    }
+}
diff --git a/src/main/java/io/gitlab/jfronny/libjf/mixin/RecipeManagerMixin.java b/src/main/java/io/gitlab/jfronny/libjf/mixin/RecipeManagerMixin.java
new file mode 100644
index 0000000..43f7ba3
--- /dev/null
+++ b/src/main/java/io/gitlab/jfronny/libjf/mixin/RecipeManagerMixin.java
@@ -0,0 +1,53 @@
+package io.gitlab.jfronny.libjf.mixin;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.gson.JsonObject;
+import io.gitlab.jfronny.libjf.Libjf;
+import io.gitlab.jfronny.libjf.data.RecipeUtil;
+import net.minecraft.item.ItemStack;
+import net.minecraft.recipe.Recipe;
+import net.minecraft.recipe.RecipeManager;
+import net.minecraft.util.Identifier;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.Map;
+
+@Mixin(RecipeManager.class)
+public class RecipeManagerMixin {
+    @ModifyVariable(method = "apply", at = @At(value = "INVOKE_ASSIGN", target = "Ljava/util/Set;iterator()Ljava/util/Iterator;", ordinal = 0, remap = false))
+    private Iterator<Map.Entry<Identifier, JsonObject>> filterIterator(Iterator<Map.Entry<Identifier, JsonObject>> iterator) {
+        ArrayList<Map.Entry<Identifier, JsonObject>> replacement = new ArrayList<>();
+        while(iterator.hasNext()) {
+            Map.Entry<Identifier, JsonObject> cur = iterator.next();
+            Identifier recipeId = cur.getKey();
+
+            if (RecipeUtil.getIdentifiersForRemoval().contains(recipeId.toString())) {
+                Libjf.LOGGER.info("Blocking recipe by identifier: " + recipeId);
+            } else {
+                replacement.add(cur);
+            }
+        }
+
+        return replacement.iterator();
+    }
+
+    @Redirect(method = "apply", at = @At(value = "INVOKE", target = "Lcom/google/common/collect/ImmutableMap$Builder;put(Ljava/lang/Object;Ljava/lang/Object;)Lcom/google/common/collect/ImmutableMap$Builder;", remap = false))
+    private ImmutableMap.Builder<Identifier, Recipe<?>> onPutRecipe(ImmutableMap.Builder<Identifier, Recipe<?>> builder, Object key, Object value) {
+        Identifier id = (Identifier) key;
+        Recipe<?> recipe = (Recipe<?>) value;
+
+        for (ItemStack stack : RecipeUtil.getRecipesForRemoval()) {
+            if (recipe.getOutput().isItemEqual(stack)) {
+                Libjf.LOGGER.info("Blocked recipe by predicate: " + recipe.getId());
+                return builder;
+            }
+        }
+
+        return builder.put(id, recipe);
+    }
+}
diff --git a/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxBlockEntityMixin.java b/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxBlockEntityMixin.java
index 5565049..6933be1 100644
--- a/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxBlockEntityMixin.java
+++ b/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxBlockEntityMixin.java
@@ -1,6 +1,6 @@
 package io.gitlab.jfronny.libjf.mixin;
 
-import io.gitlab.jfronny.libjf.data.ShulkerIllegalChecker;
+import io.gitlab.jfronny.libjf.data.Tags;
 import net.minecraft.block.entity.ShulkerBoxBlockEntity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.math.Direction;
@@ -18,6 +18,6 @@ public class ShulkerBoxBlockEntityMixin {
      */
     @Overwrite
     public boolean canInsert(int slot, ItemStack stack, Direction dir) {
-        return ShulkerIllegalChecker.isAllowed(stack);
+        return !Tags.SHULKER_ILLEGAL.contains(stack.getItem());
     }
 }
diff --git a/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxSlotMixin.java b/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxSlotMixin.java
index 24e6bc7..6eafbfa 100644
--- a/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxSlotMixin.java
+++ b/src/main/java/io/gitlab/jfronny/libjf/mixin/ShulkerBoxSlotMixin.java
@@ -1,6 +1,6 @@
 package io.gitlab.jfronny.libjf.mixin;
 
-import io.gitlab.jfronny.libjf.data.ShulkerIllegalChecker;
+import io.gitlab.jfronny.libjf.data.Tags;
 import net.minecraft.item.ItemStack;
 import net.minecraft.screen.slot.ShulkerBoxSlot;
 import org.spongepowered.asm.mixin.Mixin;
@@ -17,6 +17,6 @@ public class ShulkerBoxSlotMixin {
      */
     @Overwrite
     public boolean canInsert(ItemStack stack) {
-        return ShulkerIllegalChecker.isAllowed(stack);
+        return !Tags.SHULKER_ILLEGAL.contains(stack.getItem());
     }
 }
diff --git a/src/main/resources/libjf.mixins.json b/src/main/resources/libjf.mixins.json
index 5d368d1..ce3ba8e 100644
--- a/src/main/resources/libjf.mixins.json
+++ b/src/main/resources/libjf.mixins.json
@@ -4,6 +4,8 @@
   "package": "io.gitlab.jfronny.libjf.mixin",
   "compatibilityLevel": "JAVA_16",
   "mixins": [
+    "EntityMixin",
+    "RecipeManagerMixin",
     "ShulkerBoxBlockEntityMixin",
     "ShulkerBoxSlotMixin"
   ],