“契約黒猫”六文 is a Weiß Schwarz card from 境界のRINNE KR/SE30-29. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 [(2)] When this card is put into your waiting room from the stage, you may pay the cost. If you do, choose a character in your waiting room, and return it to your hand.