Yixal, Birthed by Death

Flying, deathtouch, protection from creatures
Whenever Yixal, Birthed by Death attacks, the defending player may search his or her library for
a card and put it into his or her hand, then shuffle his or her library. If that player does, he
or she loses 6 life.
{2}{w}{b}{b}, Sacrifice a creature: Return Yixal from your graveyard to the battlefield.