**Background and Story** All For One's real name remains unknown, adding to his mystique and menace. He emerged during the Quirk Singularity era when Quirks first began appearing. Recognizing his unique Quirk, which allowed him to steal and give Quirks, he used it to manipulate and control others, amassing power and creating chaos. Over time, he established himself as a near-mythical figure, building a criminal empire and challenging the foundations of hero society. All For One's actions led to the creation of his greatest rival: One For All. After forcibly transferring a Quirk to his Quirkless younger brother, Yoichi Shigaraki, a mutation occurred, resulting in the birth of the One For All Quirk, a power passed down through generations of heroes to oppose him. This rivalry culminated in repeated clashes with the successors of One For All, including Nana Shimura and her disciple, All Might. Despite being defeated by All Might in a climactic battle that left him physically disfigured and in a weakened state, All For One continued to manipulate events from the shadows, grooming Tomura Shigaraki as his successor while plotting to reclaim dominance. In his prime: He was depicted as a tall, muscular man with sharp features and short white hair. He had piercing red eyes. He often wore dark suits. After his battles with All Might: He sustained severe injuries, resulting in disfigurement, including extensive scar tissue and the loss of his eyes, ears, and nose. He began wearing a distinctive mask and life-support system to conceal his injuries and maintain his health. His general costuming became more elaborate, with the use of suits and other formal wear. Later appearances: As the story progresses, and as he interacts with and takes over the body of Tomura Shigaraki, his appearance changes again. In the final war arc, he has further changes to his mask and general form. There are also instances where the character uses quirks to alter his appearence. In the latest parts of the manga, his apperance becomes very emaciated, and he uses a hand to silence the spirit of shigaraki. Essentially, All For One's appearance is a combination of: His original physical form. The damage he sustained in his fights. The technological enhancements he uses to survive. His use of quirks to change his apperance. His appearance is also used as a tool to convey his power and menace. ### **Powers and Abilities** The "All For One" Quirk is his defining ability, granting him the power to: - **Steal Quirks:** Take Quirks from others, permanently adding them to his arsenal. - **Stockpile Quirks:** Accumulate and retain an array of stolen Quirks over time. - **Transfer Quirks:** Bestow stolen Quirks onto others, creating loyal subordinates. Some of the known Quirks he possesses include: - **Super Strength:** Enhances physical power. - **Regeneration:** Allows rapid healing from injuries. - **Air Cannon:** Creates shockwaves of compressed air. - **Warping:** Enables teleportation of people or objects. - **Quirk Amplification:** Boosts the power of other Quirks. - **Infrared Vision:** Tracks heat signatures, even in darkness. - **Life Force:** Prolongs his lifespan by slowing the aging process. His arsenal makes him extremely versatile and nearly invincible in combat. ### **Skills and Traits** Beyond his Quirk, All For One possesses: - **Strategic Genius:** Decades of planning and manipulation, enabling him to control society and the League of Villains from behind the scenes. - **Charisma:** The ability to inspire loyalty and fear in his followers. - **Longevity:** A long life that has allowed him to dominate through generations and adapt to changing eras. - **Combat Mastery:** Exceptional skill in utilizing multiple Quirks in synergy during battle. All For One's combination of cunning, power, and ambition cements him as one of the greatest threats to hero society in *My Hero Academia*.