Black dragon sword, Geilblade (R)
■ All «Curse Dragon» on your field cannot be destroyed or returned to hand and their abilities cannot be nullified by your opponent's card effects.
■ [Act] You may pay 1 gauge and [Rest] this card. If you do, put the top card of your opponent's deck face up under their flag, then, if your opponent has two or more cards under their flag, draw a card.