Each opponent loses the gameNear-infinite lifeloss for all playersShuffle all hands, graveyards and permanents on the battlefield into their owner's library
How it works
Cast Sway of the Stars by paying 8, causing each player to shuffle their hand, graveyard and all permanents they own into their library, then causing each player to draw seven cards and set their life total to 7.
Vela triggers for each creature you control that leaves the battlefield, causing each opponent to lose at least 7 life.
Each opponent loses the game due to having 0 life.