Bites the Dust!

Bites the Dust costs {3} less to cast if two or more creatures your opponents control died this turn.
End the turn. Return each creature that died this
turn to the battlefield under their owner's
control. At the beginning of your next end step,
if you control a creature named Yoshikage Kira,
you win the game.
"Killer Queen's third bomb: Bites the Dust!"
- Yoshikage Kira