Bark of Dark Ruler

Type: Normal Trap
Monster Type:
Attribute: Trap
Level:
Attack:
Defense:
Rarity: Common

Description: You can only activate this card during the Damage Step of a Battle Phase if 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.