Emrakul, the Dire Despair

When Emrakul enters the battlefield, search your library for up to three cards and put them into
your hand. Shuffle afterwards.
When Emrakul attacks, defending player reveals
the top ten cards of their library. You may choose
a card from among them and cast it under your control without paying it's mana cost. Defending player puts the rest in their graveyard and
shuffles their library.
Flying, trample, protection from creatures
Annihilator 4