Grandmaster crown (C)
■ [Equip Cost] [Pay 1 gauge & Pay 1 life]
■ This card cannot be destroyed by your opponent's card effects.
■ All «Drametal» monsters on your field get power+2000 and defense+2000.
■ [Act] Choose up to two «Drametal» monsters on your field, and then [Rest] this card. If you do, for this turn, those monsters gets [Double Attack].