■ [Cast Cost] [Destroy a «Curse Dragon» monster on your field] ■ Choose and use one of the following two. You may only cast "Curse Destruction" once per turn. ・Drop the top two cards of your deck. If there is a "Black Dragon Knight, Geil" among them, put the top three cards of your opponent's deck face up under your opponent's flag. ・[Counter] Destroy a card on your opponent's field.