Trigon

An [[[Realm Between Worlds|Old One]]] created by accident. A society of pacifists attempt to excise their negative emotions by collectively banishing them to the [[[Realm Between Worlds]]]. These latent feelings of hostility and aggression were given form, becoming a formidable entity.

Cultists of Trigon were able to use a surrogate female to harbor his essence, and from that union Raven was born. She is the key to the lock that holds Trigon at bay.