Obliterate the World

Again {10}{r}{r} - {10}{r}{r}: Cast this spell from your graveyard, then exile it. You may play it from exile by paying 10 life, then remove it from play permanently.
Exile all non-land permanents. All players lose 10 life and discard their hands entirely. You may cast any exiled permanents.
How about a fresh start? And another one? And one more for good measure?