Secret Revealed, Grease is a Weiß Schwarz card from Booster Pack The Eminence in Shadow EIS/SX07-004. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 1/TURN@ When you use an 【ACT】, this card gets +X power until end of turn. X is equal to the number of 《Eminence in Shadow》 characters you have ×500. 【AUTO】 [(1)] During your opponent's turn, when this card becomes 【REVERSE】, if you have another 《Eminence in Shadow》 character, you may pay the cost. If you do, 【REST】 this card, and at the beginning of your next encore step, put this card into your waiting room.