Apocalypse

Apocalypse can't be countered. If you control Conquest, War, Famine, and Death, you can cast this card without paying it's mana cost.
Choose target opponent. Exile all creatures controlled by that player. That player sacrifices all non-creature permanents, then shuffles their graveyard into their library. Exile cards from the top of that player's library until three cards remain. That player takes four extra turns.