Atirus, the Wrath-Powered

+5: Reveal your hand. You may cast 2 cards from your hand without paying their mana cost, then exile the rest.
-2: deal x damage to target player, where x is the converted mana cost of the creature with the lowest power on the battlefield.
-17: exile all cards on the battlefield, then deal damage equal to the sum of the converted mana cost of all cards exiled this way to target opponent.