Conundrum Sphinx

Flying
Whenever Conundrum Sphinx attacks, each player names a card. Then each player reveals the top card of his or her library. If the card a player revealed is the card he or she named, that player puts it into his or her hand. If it's not, that player puts it on the bottom of his or her library.

Flying
Whenever this creature attacks, each player chooses a card name. Then each player reveals the top card of their library. If the card a player revealed has the name they chose, that player puts it into their hand. If it doesn't, that player puts it on the bottom of their library.

Commander 2018

Flying
Whenever Conundrum Sphinx attacks, each player chooses a card name. Then each player reveals the top card of their library. If the card a player revealed has the name they chose, that player puts it into their hand. If it doesn't, that player puts it on the bottom of their library.