Cataclysmic Void

When Cataclysmic Void enters the battlefield, sacrifice it unless X is more than the number of players. This spell can't be countered.
{w}{w}{w}{u}{u}{u}{b}{b}{b}{r}{r}{r}{g}{g}{g}: All players
lose the game. This ability can't be countered.
A Door to Nothingness can destroy a soul. If that
power wasn't contained, it could destroy everything.