Orb of the Void

A creature that fails its save against the orb gains 2 negative levels rather than 1. A successful Fortitude save reduces this to 1 negative level.

Augmented (6th): If you expend two uses of mythic power, the orb doesn't automatically stop when in enters a space with a living creature, but the saving throw DC decreases by 2 for each creature after the first it affects each round.

An individual creature can be affected by the orb of the void only once per round, even if the orb moves through its space more than once.