Bark of Dark Ruler | BP03-EN191

Set: Battle Pack 3: Monster League
Number: BP03-EN191
Rarity: Common
Card Type: Normal Trap
Attack: 0
Defense: 0
Description: 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.