This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing from play 1 Iron Core of Koa'ki Meiru from your hand. During each of your End Phase, destroy this card unless you send 1 Iron Core of Koa'ki Meiru or 1 Koa'ki Meiru monster from your hand to the Graveyard. Once per turn, during your Main Phase, you can select and destroy 1 card your opponent controls.