Karloth, Grave Consecrator

Eminence - When Karloth, Grave Consecrator is
in the command zone or on the battlefield, your
graveyard has hexproof.
When Karloth, Grave Consecrator enters the battlefield, put target creature from your
graveyard into your hand.
{b}{b}, Sacrifice a creature: Exile this creature,
return it to the battlefield under your control at
the beginning of the next end step.