Dauthi Voidwalker

“Shadow <em>(This creature can block or be blocked by only creatures with shadow.)</em> <br>If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. <br>T, Sacrifice Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.”