自称特別捜査隊 is a Weiß Schwarz card from ペルソナ4 P4/S08-045. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Look at up to two cards from the top of your opponent's deck, choose up to one card from among them, and put it on the bottom of your opponent's deck. Put the rest of the cards on top of your opponent's deck in any order. Choose one of your characters, and that character gets +3000 power until end of turn.