Vez'norgeris, the Final Titan

Hexproof, Annihilator 3, Afflict 3. As long as Vez'norgeris, the Unbindable is on the battlefield, any cards that would go to the graveyard are exiled instead. {x}, sacrifice X Eldrazi Scions as an additional cost to this ability.
Target opponent discards X cards off the top
of their library.