The Night King

{Dauthi Voidwalker}
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 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.