Temporal Chaos

Shuffle each other card on the battlefield, in the sideboard, in the library, and in exile and
graveyard into a pile, shuffle that pile and divide
it evenly btw each player, start a subgame with
the same life total than. Whenever a player loses the game, each player gets
the same cards that they had before and continue the game with the same life total they had in the subgame, and have each card on the board. The player that lost the subgame, has life total 0