Yorick, The Soul Shepard

Black Mist (At the beginning of the end step, you
may put the top three cards from your library into your graveyard; if you don't control any creatures with the
same name as this creature, return this creature to the battlefield tapped.)
At the beginning of your upkeep, you may return target creature card with Black Mist from your graveyard to the battlefield. If it dies, exile it
instead.