Aizen, the Treacherous

Flying, Double Strike, Vigilance, Menace, Indestructible, Haste

Eminence—Whenever an opponent casts a spell if Aizen is in the command zone or battlefield you may pay {u}{b}{r} then reveal a card from your hand and replace that spell with the revealed card. If that card
is a targeted spell or ability you may choose the target/s. (A copy of a permanent spell becomes
a token.)