Book Signing, Beta is a Weiß Schwarz card from Booster Pack The Eminence in Shadow EIS/BCS2526-14a. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 During your turn, this card gets +1000 power. 【AUTO】 [Put 1 《Eminence in Shadow》 character from your hand into your waiting room] When this card is placed on the stage from your hand, you may pay the cost. If you do, search your deck for up to 1 character with the same card name as a character in your stage, reveal it to your opponent, put it into your hand, and shuffle your deck.