Koa'ki Meiru Sandman

Type: Effect Monster
Monster Type: Rock
Attribute: Earth
Level: 4
Attack: 1900
Defense: 1200
Rarity: Common

Description: 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. You can Tribute this card to negate the activation of an opponent's Trap Card and destroy that card.