The Apocalypse

Starting with you, each player takes turns sacrificing a creature they control. If they do,
it deals damage equal to its power to its owner.
If they don't, The Apocalypse deals 3 damage
to them and they mill 3 cards. Repeat until
there are no creatures on the battlefield, then
each player may return up to 3 creatures from
their graveyard to the battlefield under their
control. Then exile all graveyards.