Based on a comment on one of my other Finn pics, this is a Finn who, way early in his time in hell (like two years in) found a spot where he could hide that's close to a place where the energies of Hell and the killed demons are all around him in the air. Over the years, he unknowingly absorbed this energy into his body. It changed him in many ways. Maybe BECAUSE he's human and not already a demon or an Angel. A blank canvas. The power he absorbed made him actually powerful. Almost powerful enough to be a foil for Adam. However, even though he could dish out a beating, he couldn't really take it. He's a glass cannon, as they say. Not to mention that this power within him is still hell energy. From time to time he's seen coughing up blood. His new advanced healing factor takes care of it, sure, but at some point, he'll be so damaged inside that it won't be able to deal with the damage. He found Vaggie's discarded Exorcist helmet in the trash. He modified it and armored it up more for his own use. He started going around hell, killing demons that threatened or tormented the more "innocent" demons. Basically, protecting the little guy in a way. Though he himself cared very little about them. He just wanted to vent his hate for demons, but couldn't bring himself to hurt the ones who were victimized. His activity in Pentagram City reached Carmilla Carmine. She extended a hand of partnership. She would provide him weapons and armor and information he'd need, while he would test out her new weapons and act as a bodyguard for her daughters when they're doing their job.
The way Adam wields this golden holy light in battle, this Finn variant uses concentrated, hate-filled hellfire. So yeah... this douche was literally made because of a comment that really stuck out to me XDD

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