All for One

All for One is the central antagonist of My Hero Academia. He is primarily the founder of the League of Villains, Tomura Shigaraki's mentor, and arch nemesis of the former Symbol of Peace, Allmight.

He has a quirk known as All for One, with which he is able to steal the quirks of others. This ability has generated him many mutations throughout history, making him an extremely powerful and dangerous villain being feared throughout Japan. Due to the dangerousness and destructive potential of his power along with the fact that he has lived for more than 100 years without aging and due to the changes that he has undergone in his appearance, All for One has stopped being human to become something else with very strong powers.

Personality
All for One is a mysterious, dangerous, sadistic and manipulative man. He enjoys causing chaos and manipulating others to do his bidding. He doesn't have any empathy in no one and has a great sense of humour. He is a psychopathic individual with twisted ideals who does whatever it takes to spread his influence throughout Japan. He does not believe in moral justice since he believes that they do not match reality, so he justifies the lives he has taken as a means of restoring society. He is also a calm and composite man even in the hardest of situations

Powers and abilities
All for One is the most powerful villain in all of Japan. This is because he is the bearer of the homonymous Quirk, which allows him to steal the Quirks of others. Thanks to this ability, he has acquired an enormous amount of quirks that have made him stronger and a fearsome enemy.

Intimidation: All for One commands fear and terror in his path with just his presence that makes even the bravest of heroes tremble.

Search: This quirk is stolen from Ragdoll. It allows him to track his target

Warping: All For One can produce a black liquid that acts as a portal, similar to Kurogiri's Warp Gate.

Air Cannon: All For One releases an air shockwave from his arms.

Forced Activation: He can forcibly activate someone's Quirk against his will, whether they are conscious or not. All for One used this ability on Kurogiri to force him to create portals.

Strenght Enhancer: The unnamed Quirk seemingly enhances All For One's physical strength. All For One has three copies of this Quirk.

Air propulsion: He can release a large amount of air from his arms which forms a shock wave. This Quirk is empowered thanks to other of his abilities.

Spearlike Bones: This Quirk generates drill-like bone structures on All For One's arm.

Springlike Limbs: This Quirk allows All For One to coil his muscles in order to enhance his physical strength, and can also be used to augment other Quirks, like Air Cannon.

Life Force: Thanks to this quirk, he is able to live for a longer period without getting older, giving him some kind of immortality.

Superhuman Strenght: He possesses enormous strength with which he was able to stop Allmight just using his bare hands.