Frenetic Efreet

Flying
{0}: Flip a coin. If you win the flip, this creature phases out. If you lose the flip, sacrifice this creature. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

World Championship Decks 1997

Mirage

Flying
o0: Flip a coin; target opponent calls heads or tails while coin is in the air. If the flip ends up in your favor, Frenetic Efreet phases out. Otherwise, bury Frenetic Efreet.