Ebony Maw

Hexproof
When Ebony Maw enters the battlefield, exile target creature or planeswalker for as long as you control Ebony Maw.
{1}{b}, Sacrifice another creature: Scry 1. Each opponent loses 1 life and you gain 1 life.
{t}: Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Exile it.)