Your monster may have been created over generations, within a cult or some lineage prone to evil deeds, culminating in a young soul so full of hate and evil that it manifested as a Spirit Wraith.
Regardless of how it came to be, a monster can only lead to one thing: destruction. In other cases, the monster seeks out these things, finding a weak, wretched soul to inhabit and make stronger, so that it might spread the chaos further. Sometimes this monster is created from ourselves, a collection of evil thoughts and dark memories that build within the psyche until they manifest in the real world. But there are some people who hide real monsters, true evil within themselves, that when unleashed become forces of destruction and violence so terrible they consume the person that created them. They can reveal themselves in many different ways, but in the end they all reflect the core of one's character, the selfish desires and wrathful urges that bubble and boil just below the surface.
