ONA
Description
Abigail is a major antagonist in the series, serving as the leader of the Four Divine Kings, a group of powerful individuals who once served the dark wizard Dark Schneider before his apparent death. His primary goal is to obtain the four seals that imprison the God of Destruction, Anthrasax, with the intention of reviving this deity to reshape the world.

Physically, Abigail is depicted as a heavily built man with a long, narrow face and dark hair, appearing to be middle-aged. His personality undergoes a significant transformation throughout the story. While under the control of Anthrasax's spirit, he exhibits the traits of a sadistic megalomaniac, driven to manipulate others into breaking the god's seals. However, after being freed from this influence, his demeanor becomes much calmer and more stoic, though his actions retain an over-the-top quality.

His background reveals that he was originally a scientist from the lost Old World and one of the Ten Wise Men of Europa. This group was responsible for creating advanced technologies and magical entities, including the Spirit Energy Reactor, the Dragon Knight armor, and the God of Destruction Anthrasax itself. Following the destruction of the Old World, he and his colleagues became Dark Elves to extend their lifespans. Centuries before the main story, he left the Ten Wise Men and traveled the world as a human cleric known as the Dark Prophet of the Underworld.

In his role within the story, Abigail leads the plot to break the four seals of Anthrasax. He is responsible for besieging the Kingdom of Judas and breaking the first seal, an act that allowed him to become possessed by Anthrasax. In this possessed state, he commits numerous villainous acts, including using a powerful curse on his ally Arshes Nei, destroying the kingdom of Iron Maiden with an army of zombies, and wielding three ancient demonic artifacts against the kingdom of Metallicana. After Dark Schneider destroys his body, the essence of Anthrasax within him is also destroyed, allowing his soul to be freed. He then hides his identity by disguising himself in a mechanical suit, calling himself Angus Yarn, and allies with the heroes while his true body heals. After two years of silence to conceal his voice, he reveals his identity and ultimately aids in Dark Schneider's restoration.

As for notable abilities, Abigail is a highly powerful black magic sorcerer. His known spells include Accused, which turns a target's fingernail blue and forces them to obey the caster's commands forever on pain of being transformed into a toad; Thor, a powerful magical beam; and Heretic, which causes vine-like tentacles to erupt from the ground and restrain targets. He also possesses a cloak made of living, animated tentacles that can act as lightning rods, anchor him in place, and immobilize opponents. His most formidable power is Ultra Omega Abigail, a giant fused construct he creates by combining with the Three Demonic Treasures. This form is incredibly destructive and resistant to nearly all weapons and magic, covered in Anti-Magic Talismans. It can fire powerful beams from its arm (Abigail Buster), its mouth (Abigail Beam), and its most powerful attack, the Abigail Collider, from its chest, which is strong enough to destroy Dark Schneider's Golem in a single strike. However, this form has a critical weakness: the energy-collecting membrane in its chest, which is exposed when firing the Abigail Collider, lacks magical protection.
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