The Hole in the Stars

At the beginning of each opponent's end step,
they choose whether to sacrifice all permanents
they control, discard their hand, have their life
total become 1, get 9 poison counters, or put all
cards in their library into their graveyard. A mode
cannot be chosen more than once by the same
player.
At any time, an opponent can choose to lose the
game. If they do, sacrifice The Hole in the Stars
unless you choose a mode from above.