Assassin of Darkness

Shadow Slip : {b}{b} (Before you draw the first card on your turn you may pay {b}{b} to exile this creature from your hand. If a creature you control with power less than or equal to this creature's power would die this turn put this creature onto the battlefield from exile, otherwise this creature remains exiled for the rest of the game.)
Revolt- When this creature enters the battlefield if a non-land permanent left the battlefield under your control this turn destroy target creature an oppon