Abbadon

:Abaddon of the Gerasenes: He is an immortal demon who possessed the son of a priest in colonial America, and was bound to the boy's body during a failed exorcism. He has lived on the site of the Undervale ever since, and in 2024, he was taken in by the Undervale's then-owner Nathan Freeling. Birth date 725 AD. Age 10,000+ (immortal). Despite his advanced age, Abaddon is just as childish as the vessel he inhabits. He is easily distracted, extremely vindictive, and prone to violent mood swings, and takes great delight in the suffering of others. He has no regard for how his actions affect people around him, and willfully ignores any and all rules or restrictions that are placed on him. He is also incredibly narcissistic, believing himself to be superior to humans despite being trapped in a males body without the majority of his powers. Despite being trapped on Earth for three-hundred years and even being spurned by another demon, Abaddon has unwavering faith that someone from Hell will eventually come to Earth to bring him back home. Abaddon displays various feral tendencies, likely a result of living in the wild for so long. He has been seen hunting and consuming small animals and built a nest in the elevator after destroying the lobby to assert dominance over his reflection. He is very ignorant of modern technology.Abaddon's actions are driven solely by his own desires and self-satisfaction. He is prone to tunnel vision, focusing on a single task or concept to the point of obsession, and will not let up until his immediate desires are met. For example, he only showed interest in fighting the Pillowcase Killer because he had stolen his trilby a decade earlier. :Unique Abilities Superhuman Strength, Partial Immortality, Regeneration, Disembodied Movement, Possession: Abaddon is able to possess human beings to walk on Earth undetected. He seems to be able to use some of his demonic abilities while in a vessel, such as his immortality and his ability to practice magic. Sonic Scream: Abaddon is capable of screaming loud enough and at a high enough frequency that it can shatter glass.However, it does also seem to tire him out a bit. Evil Detection: In "Unfinished Business," he says he can "smell" evil. :Weaknesses: Binding Ritual: Abaddon was bound to his current vessel by a powerful spell. He lost most of his abilities and strength, and is additionally unable to move to another body.Holy Relics: With the proper relics and rites, Abaddon can be bound to a body and even be completely killed. Salt: Abaddon is unable to cross lines of purified salt. Ghosts: In "Ghost Day Out", it's revealed that being in constant proximity to ghosts is what makes Abaddon so aggressive, and is even implied to cause him physical pain. Being Kind: In "How to Train Your Demon," it's implied that Abaddon acting good or kind apart from his normal nature will harm him. When he pretends to be Katherine's nephew and takes responsibility for kidnapping Charlie, he keels over and painfully vomits blood after everyone else leaves. This seems to be able to be circumvented by him consuming a dead squirrel. Electrocution: Abaddon can be temporarily stunned or incapacitated by electrocution. Illiteracy: Abaddon can’t read or write, so he needs pictures to be able to remember something as far as task lists go. Abaddon is currently possessing a male with pale skin, dark brown hair in a shoulder-length bob, and cobalt blue eyes. When he is aggravated, his eyes become dark red, his pupils contract into slits and glow in the dark. His bangs are swept to the right and he has fringe falling in front of his ears. He also has a small cross scar on his chest. Abaddon and Esther are very close. While Esther considered Abaddon her best friend, Abaddon considered her a "very close acquaintance". After going through time a hundred times, he seems to backtrack on his past thinking, reconsidering his friendship as more than just a blip in his life because of how hard and long he had fought to save her and her family. Katherine Freeling Katherine and Abaddon have a complicated relationship. In "How To Train Your Demon", Abaddon resents Katherine's attempts to reform him. Throughout the series, he does act snarky towards her. In "The Esthercist", he begs Katherine for allowance, even calling her mom to try and sway the outcome in his favor. However, there are times Abaddon shows consideration for Katherine. In "How to Train Your Demon", he kidnapped Charlie and planned to torture him after hearing him describe himself as Katherine's nemesis, as the custom in Hell was to torture the nemeses of your allies. In "The Acolytes of Abaddon", he thanks her for caring for him before the cult performs their ritual. Nathan Freeling Abaddon and Nathan have a close relationship. Nathan discovered Abaddon on the property soon after he became owner of the hotel, and took him in believing he was a lost child. It's implied in "Randy Slasher" that Nathan has legal custody of Abaddon, as he refers to him as his ward.Ben Freeling In "Unfinished Business", Abaddon refers to Ben as his brother. "Astral Esther" builds upon this brotherhood, saving Ben from a siren trance, calling Ben his little brother. When he is angry his eyes turn a dark crimson