The unique wonder constructed by the Mirror Demon, "Mage Slayer," although its power has no limit, is actually a trash wonder. The reason is that this wonder is only effective when your magic realm can fully crush the enemy, but if your magic realm can already crush the enemy, you could win with any miracle, just like the Divine Lord attacking a demigod wouldn't need to use any skills, a casual normal attack could explode the demigod.
Moreover, "Mage Slayer" must be custom-made based on the enemy's physical parameters. If the enemy realizes this flaw and continuously modifies their parameters, "Mage Slayer" must change accordingly—except for the End Five, no one in the world can do this.
