Cyric's Apotheosis

When Cyric's Apotheosis enters the battlefield, sacrifice all creatures you control, then put a soul counter on Cyric's Apotheosis for each nontoken creature sacrificed this way.
If you would lose the game, instead you may remove a soul counter from Cyric's Apotheosis. If you do, you can't lose the game this turn and your opponents can't win the game this turn.