In a 1v1v1, and one player is already dead, (Life: p1:13, p2:0, p3:2 (Myself being p3)), if I were to play {Reverse The Sands} and switch all the life totals to where I got the 13 and p1 got the 0, and p2 had already picked up their cards because he was dead, what happens?
Once a player hits 0 and is dead, he is removed from the game. The other opponent's life total cannot become 0, since there is no active player with 0 life.
Oh alright.
It would work if a player had 0 but had {Phyrexian Unlife} though right?
It would work if an effect was preventing the player from losing the game, yes