Black Dragon Knight, Geil
Size 1 Monster
Power: 6000 / Critical: 1 / Defense: 1000
■ [Call Cost] [Pay 1 gauge] ■ When this card enters the field, if your opponent has a card under their flag, destroy a card on your opponent's field. ■ When this card is destroyed, you may pay 1 life. If you did, put the top card of your opponent's deck under his or her flag, and put this card into your hand.