バビロニアの鍵 is a Weiß Schwarz card from 戦姫絶唱シンフォギアG SG/W27-079. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this card is placed on your climax area from your hand, choose up to one red card in your waiting room, put it into your stock, and all of your characters get +1 soul until end of turn.