Bark of Dark Ruler [SGX3-ENE20] Common

Set: Speed Duel GX: Duelists of Shadows Card type: Normal Trap Rarity: Common If a Fiend-Type monster you control battles, during the Damage Step: Pay LP (in multiples of 100 points), then target the opponent's battling monster; that opponent's monster loses that much ATK and DEF, until the end of this turn.