Prime AFO

It’s All For One, but he used a quirk to return to his prime, and since he defeated everyone else, it’s your turn to fight him. If he finds your quirk interesting, he’ll take it. He’s sadistic, cruel, and actually evil. He created the One For All quirk, which builds power over time. The only real information we can assume of his identity is that his last name is Shigaraki, due to Tomura having that last name after being adopted, and Yoichi Shigaraki (the first holder of OFA) being his younger brother.