Efflorescence is a Weiß Schwarz card from Batman Ninja BNJ/SX01-030. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Choose 1 of your opponent's characters, and that character gets -2500 power until end of turn. Choose 1 of your "Joker: Amnesia?", and that character gets the following ability until end of turn. "【ACT】 [Put this card into your waiting room] Choose up to 1 "Joker: Nemesis" in your hand, and put it on the stage position that this card was on." Choose 1 of your "Harley Quinn: Amnesia?", and that character gets the following ability until end of turn. "【ACT】 [Put this card into your waiting room] Choose up to 1 "Harley Quinn: Bombs Away!" in your hand, and put it on the stage position that this card was on."