Grand Demon

"Do you think this will stop me? Do you think this pathetic restraint is going to stop me?! I am Modos, the Grand Demon, I will not be stopped by human tools! Even with nothing but my fingers, I will break this world in half! I will tear everything until not even memories are left! Time will mean nothing in a world with no one!"

- The Grand Demon declares his intentions to the world Modos (モドス, Modosu) is an extraodinarily powerful Demon, hailed as the most powerful Demon of his era. He was the unofficial leader of the Thirteen Calamities, surpassing all of them in terms of raw power. Due to his frightening power, Modos began losing his name as time went on, becoming addressed the Grand Demon (大悪魔, Dai Akuma) by all, becoming his new identity as he abandoned his name in favour of embracing his power. His sheer destructive power also gained him the title of Demon God of Calamity (惨禍の魔神, Sanka no Majin).

He was eventually sealed after being severely weakened, requiring many sacrifices in order to successfully seal him for good. He was placed under multiple powerful seals with varying levels of complexity, being ranked as an unstoppable monster that would threaten the entire world if he were to ever be allowed freedom once more.

Sealed Body
Due to the powerful seal placed on the Grand Demon's body, his body was reduced to a humanoid shape, lowering his power by 80%, in addition to restraining his movement as much as possible. The seal manifests as a pitch-black leather suit around the Grand Demon's body, complete with metal shoulders pads, "blade-spikes" on his back, pointing upwards, as well as gloves that don't have any room for fingers, stripping away the Grand Demon's ability to use his hands. In addition, the skin-tight leather attire consist of a "dress" with several belts on it, limiting his leg movement. His face is hidden behind mask made of metallic bars resembling barbwire, seemingly stabbing his face continously digging deeper, with only his right eye being visible, hinting to have lost his left eye.

He appears to possess a muscular build in his humanoid form, as well as being rather tall and bulky, notbaly taller than any adult human, at best having one reach up to his chest.

Ultima Finis
"I have seen the end of all things. Time, space, existence itself, reduced to nothing. And I will draw power from that bleak future, to show you that everything you try against me, is in vain."

- The Grand Demon vaguely explaining his power

Ultima Finis (ウルティマ・フィニス, Urutima Finisu; Latin for "The Ultimate End"):

Trivia

 * "Modos" is an anagram of "Sodom", from "Sodom and Gomorrah" from the Bible.