Bark of Dark Ruler [DB2-EN132] Common

Set: Dark Beginning 2 Card type: Normal Trap Rarity: Common You can only activate this card during the Damage Step of the Battle Phase that a Fiend-Type monster on your side of the field battles. Pay Life Points (in multiples of 100 points) to decrease 1 of your opponent's monster's ATK and DEF by the same amount of points until the End Phase of that turn.