If you do not have an "Eminence in Shadow" character, this card cannot be played from your hand.Look at up to 4 cards from the top of your deck, choose up to 1 "Eminence in Shadow" character from among them, reveal it to your opponent, put it into your hand, and put the rest into your waiting room.You may choose 1 card in your level and 1 card in your waiting room, and exchange them.