During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Rock-Type monster in your hand. During either player's turn, when your opponent activates a trap card: You can Tribute this card to negate the activation, and if you do destroy this card.
![Koa'ki Meiru Sandman [BP03-EN072] Shatterfoil Rare](http://paradoxtcg.com/cdn/shop/products/1b222b0d-b87a-5d8f-960b-3b6acb46ccd9.png?v=1698797843&width=1445)
