src/main/java/systems/brn/tweaks/Tweaks.java

@@ -8,8 +8,13 @@ import net.minecraft.world.GameRules;
 public class Tweaks implements ModInitializer {
     public static final GameRules.Key<GameRules.IntRule> ENTITY_PORTAL_COOLDOWN =
             GameRuleRegistry.register("entityPortalCooldown", GameRules.Category.MOBS, GameRuleFactory.createIntRule(300, 0, Integer.MAX_VALUE));
+
     public static final GameRules.Key<GameRules.IntRule> ENDER_PEARL_DAMAGE =
             GameRuleRegistry.register("enderPearlDamage", GameRules.Category.PLAYER, GameRuleFactory.createIntRule(5, 0, Integer.MAX_VALUE));
+
+    public static final GameRules.Key<GameRules.IntRule> SHIELD_AXE_COOLDOWN =
+            GameRuleRegistry.register("shieldAxeCooldown", GameRules.Category.PLAYER, GameRuleFactory.createIntRule(100, 0, Integer.MAX_VALUE));
+
     @Override
     public void onInitialize() {
     }

src/main/java/systems/brn/tweaks/mixin/PlayerEntityMixin.java

@@ -0,0 +1,29 @@
+package systems.brn.tweaks.mixin;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.server.world.ServerWorld;
+import net.minecraft.world.GameRules;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+import systems.brn.tweaks.Tweaks;
+
+@Mixin(PlayerEntity.class)
+public abstract class PlayerEntityMixin {
+
+    @ModifyConstant(
+            method = "disableShield(Lnet/minecraft/item/ItemStack;)V",
+            constant = @Constant(intValue = 100)
+    )
+    private int modifyShieldCooldownConstant(int original) {
+        PlayerEntity player = (PlayerEntity)(Object)this;
+        if (player.getWorld() != null && player.getWorld() instanceof ServerWorld sWorld) {
+            GameRules.IntRule rule = sWorld.getGameRules().get(Tweaks.SHIELD_AXE_COOLDOWN);
+            return rule.get();
+        }
+        return original;
+    }
+}

src/main/resources/tweaks.mixins.json

@@ -5,7 +5,8 @@
   "compatibilityLevel": "JAVA_21",
   "mixins": [
     "DontHurtMePearlMixin",
-    "JustTeleportAlreadyMixin"
+    "JustTeleportAlreadyMixin",
+    "PlayerEntityMixin"
   ],
   "injectors": {
     "defaultRequire": 1