added ender armour, need to polish thing and give the ingot an item model - disabled at eagerLoad for now

src/main/kotlin/dev/zxq5/items/sets/Witherite.kt

@@ -4,6 +4,7 @@ import dev.zxq5.items.template.ArmorSet
 import dev.zxq5.items.template.GenericGearSet
 import dev.zxq5.items.template.registerItem
 import dev.zxq5.items.template.provideDelegate
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
 import net.minecraft.core.component.DataComponents
 import net.minecraft.sounds.SoundEvents
 import net.minecraft.world.InteractionHand
@@ -49,7 +50,7 @@ object Witherite: GenericGearSet() {
                 Optional.empty() // default disable sound
             ))
         }
-        smithingUpgrade(Items.NETHERITE_UPGRADE_SMITHING_TEMPLATE, Items.NETHERITE_SWORD, Items.WITHER_SKELETON_SKULL)
+        smithingUpgrade(Items.NETHERITE_UPGRADE_SMITHING_TEMPLATE, Items.SHIELD, Items.WITHER_SKELETON_SKULL)
     }
 
     val SWORD by registerItem("witherite_sword", ::WitheriteSword) {
@@ -102,7 +103,13 @@ object Witherite: GenericGearSet() {
     override val items = listOf(SWORD, AXE, SHIELD, HELMET, CHESTPLATE, LEGGINGS, BOOTS)
 
     override fun onLoad() {
-        // empty function - this must be called to initialise the above properties ^
+        ServerTickEvents.END_SERVER_TICK.register { server ->
+            for (player in server.playerList.players) {
+                if (fullSetEquippedBy(player)) {
+                    player.removeEffect(MobEffects.WITHER)
+                }
+            }
+        }
     }
 }