Toshinori Yagi

Toshinori Yagi also known as All Might , was the former No. 1 Pro Hero who bore the title of the world's Symbol of Peace. He teaches Foundational Hero Studies at U.A. High School. All Might was the eighth holder of the One For All Quirk after receiving it from Nana Shimura. He has since passed the torch to Izuku Midoriya, whom he is training to be his successor. After using up all the embers of One For All to defeat All For One, All Might retired and ended his era as the world's greatest hero. All Might was recognized as the greatest hero in the world. He was the "Symbol of Peace" and such a deterrent against crime that villains were largely discouraged by his presence in society, single-handedly bringing near-absolute stability throughout Japan, a stark contrast to the rest of the world. He was able to defeat All For One, infamously known as the world's most powerful villain, twice; a feat that all the previous wielders of One For All could not.

Despite winning however, All Might suffered a gruesome injury at the hands of All For One that limited his maximum power output going forward, gradually reducing his sheer might and how long he could use his power at all. Even after his Quirk's power was constrained by his injuries, All Might's strength and speed were unmatched. After he passed his Quirk onto Izuku, relying on the residual energy of One For All made his strength and time limit decrease more rapidly. Even so, All Might could still defeat villains on his own that groups of normal Pro Heroes struggled against. By pushing his power beyond its reasonable limits, All Might defeated Nomu, who was created specifically to kill him, with over 300 blows. Against Izuku and Katsuki, who are among Class 1-A's elites, he completely dominated them in their fight, even while wearing high-density weights. Forced to once again break the limiter placed on his Quirk, All Might defeated All For One by using up his remaining reserves of power. Even though he is unable to keep his hero form for more than a few seconds after his final battle with All For One, All Might still keeps a keen intuition and sharp reflexes, which helped him hone his skills as a hero ever since he acquired his powers. This is shown in his observations regarding Izuku's use of One For All, and the fact that he was capable of catching one of Mei Hatsume's "babies" coming in from behind with minimal effort in his true form. Despite his physique in his true form, he is actually quite physically able but isn't as efficient compared to when he is in his hero form. Usage of One For All requires the user to have strong muscles, as One For All is a lot to handle and could cause the user's body to be blown apart if they don't possess the necessary strength of body. Gran Torino said that All Might, in particular, had a strong body that allowed him to master One For All much faster than previous users. One For All Transferred to him from Nana Shimura, Toshinori's Quirk allowed him to stockpile an enormous amount of raw power, allowing him to significantly enhance all of his physical abilities to a superhuman level. This resulted in unbelievable levels of strength, speed, agility, and durability. All Might was so proficient with One For All that he was widely known as the world's most powerful person. However, most of the known feats he performed are after he'd been grievously injured by All For One, and after he started the process of transferring One For All to Izuku, so the fullest extent of his abilities are mostly unknown.

Himiko Toga

Himiko Toga is a major antagonist of the My Hero Academia manga and anime series. She was a member of the League of Villains, affiliated with the Vanguard Action Squad, and later becoming one of the nine lieutenants of the Paranormal Liberation Front. She is featured as an antagonist in the Forest Training Camp Arc, Provisional Hero License Exam Arc, Shie Hassaikai Arc, and Paranormal Liberation War Arc. Himiko is a exceptionally talented and dangerous combatant who's not only capable of contending with Pro Heroes in close-quarters combat, but is a master of disguise, infiltration, and stealth, mostly due to her shapeshifting Quirk, Transform. With espionage being one of her most prominent traits, holding her breath and clearing her mind allows Himiko to erase her presence and allegedly vanish from her enemies' view. This ability isn't limited to ambushes, as it can be used in combat as well, disappearing if the opponent averts their attention from her, even for an instant. And despite lacking a Quirk that amplifies her combat abilities, Himiko effectively utilizes her incredible agility, reflexes, and acrobatic skills. She is also adept at creating openings to conceal herself, such as intentionally forcing an opponent to dodge.

During the Vanguard Action Squad Invasion, Himiko was able to ambush Ochaco Uraraka and Tsuyu Asui, slightly injuring the former, before easily pinning the latter to a tree. Even though she was overpowered by Ochaco's Gunhead Martial Arts, Himiko was able to secure a blood sample from the Gravity Hero, release herself, and make a hasty retreat, due to the arrival of Izuku, Shoto Todoroki, and Mezo Shoji. Five minutes later, she nearly stabs a battle-worn Izuku twice while successfully tackling him to the ground, but she was swiftly repelled by Mezo. In the course of the Kamino Incident, Himiko, along with Twice and Mr. Compress, forced Katsuki Bakugo on the defensive, before he was rescued by his classmates, and the League of Villains were transported away by All For One. Later on, Himiko, under the guise of Camie Utsushimi, proved to be a contender in the Provisional Hero License Exam, in spite of its strict competition, given she was able to employ sneak attacks to blindside Izuku, one of U.A. High School's most powerful students, and pass the first phase without needing it to be her priority. Himiko's abilities garnered the attention of Overhaul, who wanted her to play a role in the upcoming Shie Hassaikai Raid. When the raid started, she was able to defeat the Pro Hero Rock Lock, and temporarily misdirect the rest of the Nighteye Squad before revealing herself. Himiko used her swiftness to surprise Izuku with knife attacks, and then use Eraser Head's Capturing Weapon against the Pro Hero by rolling herself in it, and stab him in the shoulder once she got in close, all before the Erasure Hero could restrain her. Come winter, the League of Villains engaged the Meta Liberation Army at the Revival Celebration, wherein Himiko faced Curious, one of the M.L.A's leaders, and her group of followers. The bout began with Himiko slashing that throat of one of the Curious' soldiers, and vanished from sight to get the drop on Curious herself, only for the adolescent to be sent crashing through a store window. When faced with 4 M.L.A members, Himiko subdued them with her needles to suck their blood but was heavily injured due to Curious detonating the siphoned blood with her Landmine Quirk. A battered Himiko was barraged by many M.L.A members until she attempted another attack on Curious, only to wind up injured even further by the publicist's Curious Flattener. Overwhelmed, Himiko tried to flee from the Liberation Army forces pursuing her, but just as Curious was about to finish off the serial killer, Himiko undergoes an Awakening, causing her Transform to evolve to where she can use the Quirks of the people into whom she's transformed, signified when she unexpectedly accessed Ochaco's Zero Gravity to make Curious levitate. With this inflated power, Himiko proceeded to swiftly tap each of Chitose's followers to make them float before any of them could react, and release them, along with Curious herself, killing off Himiko's assailants. After the Revival Celebration, Himiko became a lieutenant of the now unified Paranormal Liberation Front. Himiko is very proficient with knives, which she uses along with her enhanced agility. She stabs her enemies at a close distance or throws her blades from a considerable distance. She even incapacitated Rock Lock before stabbing him unconscious. Himiko's Quirk grants her the ability to transform into a physical lookalike of another individual, as well as copy their voice. She can only transform into people whose blood she has ingested. The more blood she drinks, the longer she has access to that person's form. For example, 1 cup of blood lets her transform for a total of 18 hours. She can switch between the appearances of multiple people if she drinks the blood of more than one person. She can even duplicate a person's clothing, though, her own clothes would overlap the transformation, requiring her to get naked beforehand. Upon deactivating her Quirk or switching to another disguise, Himiko's disguise melts into a gray viscous liquid. During her fight with Curious and her soldiers, Himiko's Quirk underwent an Awakening, giving her the ability to use the Quirks of the people into whom she's transformed, something that she was previously incapable of doing. Although, Himiko can only use another person's Quirk if she is fascinated by that person and holds that person close to her heart, and she must have sufficient information on their power.