Ebony Maw

Shadow (This creature can block or be blocked
by only creatures with shadow.)
If a card would be put into an opponent's
graveyard from anywhere, instead exile it with a
void counter on it.
{t}, Sacrifice Ebony Maw: Choose an exiled card
an opponent owns with a void counter on it. You
may play it this turn without paying its mana
cost.
"Now go in peace and meet your Maker."
—Ebony Maw