Khaos

Khaos is a primordial being that exists and rules The Nothing, a realm predating the Multiverse

Appearance
Khaos usually either appears by possessing a host or appearing as a mirror form of a host. Occasionally, it may take the form of a black ooze similar to dark ink, and form a vaguely humanoid form with longish hair that resembles water in how it acts.

Personality
Khaos appears to act rather cynical and temperamental once being awoken. It also seems to be fairly confident in its own judgement.

When it seeks out the souls it desires, this shows a new side of Khaos' personality, showing it to be impulsive, sadistic and seemingly mentally unstable. It treats the souls that accumulate in its realm as its own possessions, and will go to great lengths to obtain what it desires.

Ooze Manipulation
Khaos, when it appears as its ooze form, can manipulate the ooze that surrounds it to do its bidding.

Dimensional Travelling
Khaos can travel between universes with ease.

Immortality
Having predating the Multiverse and being a primordial entity, Khaos is immortal and unable to be harmed in any way.