Through the Wormhole

Suspend X {w}{u}{b}{r}{g}{c}. X is equal to a third
of your life total, rounded up.
Restart the game. Until the end of the new
game, each player must play with a different player's deck. (The deck each player plays with is chosen at random from among the decks being played when you cast this spell.)
When the very fabric of the multiverse begins to collapse, strange things begin to happen.