
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.
Conundrum Sphinx has 3 printings, first in Magic 2011 (2010). EDHREC ranks it #16,938 among Commander cards. It appears most in Unesh, Criosphinx Sovereign decks (1,019 on EDHREC). 2 public decks on TCG run it. It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.