Antevishnum

You can't see me!

_{This character has no official visual representation in any Transformers product or media... yet, at least.}

The Antevishnum are malevolent entities that dwell in the the void between universes, one of many eldritch creatures that might threaten an unwary dimensional traveller. They are somehow related to another group of reality-devouring horrors known as the Beforites.

Fiction

TransTech

Rhinox identified the Antevishnum as one of the many beings responsible for consuming the remnants of destroyed universes and maintaining the overall health of the multiverse. Andromeda - Axiom Nexus News, 2015/08/16

Vector Prime had encountered the Antevishnum in the past, but refused to give any details about the experience. Ask Vector Prime, 2015/09/06

Notes

• "Antevishnum" roughly translates to "before Vishnu", so make of that what you will.