Esdeath (Akame ga Kill) is the strongest warrior of the Empire. It took the combined military of one million men and ten Teigu Users including Akame to defeat her.
Guts, The Black Swordsman (Berserk)
Wyald (Berserk), the leader of the Black Dog Knights was an abnormally strong Apostle...
...throwing a man half his size in instant while his hands were cuffed...
Guts' sword swing one handed...
...and parry Guts's heavysword swings with a ordinary tree log.
Yachiru Unohana (Bleach) has mastered all the countless sword styles in the world, becoming the first Kenpachi.
Kenpachi Zaraki (Bleach) is one of the most powerful Shinigami to have ever lived. With his strength unleashed Kenpachi is able to slay Unohana, one of the strongest Shinigami of all time, with one blow.
Sosuke Aizen (Bleach) is one of the most powerful Shinigami in existence, the Wandenreich considered his power to be superior to Genryuusai.
Ichibē Hyōsube (Bleach) is one of the most powerful Shinigami and commander of the Royal Guard.
Yhwach (Bleach) is the most powerful Quincy that ever existed, defeating Genryusai Yamamoto without any effort at all.
Ichibē Hyōsube vs. Yhwach (Bleach)
Layfon W. Alseif (Chrome Shelled Regios) gained the title of Heaven's Blade at the 10 yrs old, being considered genius and can fight against Contaminoids for several days without rest.
Ichijo Aoi (Choujin Koukousei-tachi wa Isekai demo Yoyuu de Ikinuku you desu!) is the strongest martial art master in the world. She can single-handedly annhilate an entire army of terrorist using pure might and skill.
As an Angel, Whis (Dragon Ball Super) is a master of Ultra Instinct, and therefore a fighter stronger than even gods.
The Grand Priest (Dragon Ball Super) is the greatest fighter in all of existence. Even Whis admitted he would stand no chance against him.
Jiren (Dragon Ball Super) is the strongest mortal fighter in the multiverse. Having reached an unfathomable level of skill and power that surpasses even the Gods of Destruction.
Son Goku (Dragon Ball series), the first mortal to have mastered Ultra Instinct, putting him beyond even gods.
As the Potara Fusion fo Goku and Vegeta, Vegito (Dragon Ball series) possesses two lifetimes worth of combat experience from two of the multiverse's greatest mortal warriors.
Like his Potara counterpart, Gogeta (Dragon Ball Super) is an incredibly skilled and nigh-unbeatable fighter.
Acnologia (Fairy Tail) who is considered the King of Dragons possesses such ludicrous power that he is greater than the entire formidable armies of Alvarez and Ishgar and the mighty Wizard Saints and the dreaded Spriggan 12.
Having been a full fledged martial artist since the age of 3, Kenshirō Kasumi (Fist of the Blue Sky) wander the world crippling or killing those he would fight earning the moniker of Yánwáng (King of Death).
Kenshiro (Fist of the North Star) is ultimately regarded as the world's strongest man. His mastery of the greatest martial art the globe over, The Hokuto Shin Ken (Big Dipper God Fist), has garnered him titles such as the Savior of The Century's End.
Isaac Netero (Hunter × Hunter) is one of the strongest characters of the series and an extremely powerful practitioner of Nen.
Meliodas (Seven Deadly Sins) as legendary combat skill and might feared by even the Goddess Clan during his time as the leader of the Ten Commandments being the true success of the Demon King himself.
Madara Uchiha (Naruto) was one of the most gifted shinobi in history. His tremendous skills in armed and unarmed combat allowed him to take an army of highly skilled shinobi at once.
Naruto Uzumaki and Sasuke Uchiha (Naruto) have surpassed their predecessors Hashirama and Madara as the most powerful Shinobi of all time.
Kaguya Otsutsuki (Naruto) attained god-like power she used put an end to a war-torn era single-handedly and was worshiped as a goddess for her power.
Nagi Springfield (Negima) is considered as the strongest Magic Knight Magi not only for his magical prowess, but also monstrous battle strength. In just his teens defeated the Mage of Beginning, a powerful and Ancient Archmage feared as the greatest threat to the Magic World...
At the age of 10, Negi Springfield (UQ Holder) defeated his father's longtime rival Jack Rakan and destroyed demons of the Mage of Beginning and his father who was possessed by the same person. As an adult was known as the most powerful immortal mage able to move at the Speed of Lightning, while utilizing thousand different magics.
Jack Rakan (Negima) a powerful Gladiator with immense combat strength, magic and ki that borders on insanity, being the only person who could fight against his eternal rival, Nagi Springfield…
…his abilities earned him the titles 'Thousand Blades', 'Man Who Cannot Die', 'Immortal Fool, 'Human Atomic Bomb', 'Ultimate Hard Worker', and 'That Damn Guy Who You Can Stab With Swords All You Like And'... you get the point.
Dracule Mihawk (One Piece) is the Strongest swordsman in the World...
...to the point of overpowering even Roronoa Zoro with a mere dagger.
Before his death, Edward Newgate/Whtebeard (One Piece) held the title of the Strongest man in the World for his physical power, which is far superior to even a giant and having eaten the Gura Gura no Mi, the strongest Paramecia-type Devil Fruit, many calmed he had the power to destroy the world.
Charlotte Linlin/Big Mom (One Piece) is one of the world's most powerful pirates; even at the age of 5, she effortlessly defeated one of the Giants' greatest warriors.
Kaido (One Piece) is hailed as the strongest beast in the world.
Shinobu Sensui (Yu Yu Hakusho) mastered the Resshūken, fighting style that is only available to fighters that have mastered all other forms of martial arts. He also mastered the Sacred Energy, the highest echelon of power that even Genkai couldn't achieve.
Raizen (Yu Yu Hakusho) was a Mazoku, an immensely powerful demon warrior, that even starving himself for centuries and merely using his descendant, Yusuke Urameshi, as a temporary medium he was able to decimate the mighty Sensui.
Jin Toujou (Shinmai Maou no Testament) has supreme strength and combat skill among the Hero Clan, so much so that the original Demon Lord pulled back his forces in fear of his monstrous strength; being of akin to a War God...
...during the climax of the Great War, Jin pushed both Sapphire
out of a dimension that they were all trapped in where 20 Ancient Evil Dragons, Fafnir
were located and killed them himself just as he was about to be saved.
Edelweiss (Rakudai Kishi no Cavalry) is the world's strongest swordsman and a Desperado, her combat skills greatly outmatched Ikki who was fighting at his best...
...her presence could be felt from far away by powerful Blazers and a fellow Desperado as if a sword were at their throat.
Hou Ken of the Three Great Heavens of Zhao (Kingdom) is a Bushin, a path seeker of the martial path who "host a violent god" within himself, a powerful fighter who is...
...strong enough to kill multiple opponents with one slash
...move as fast as the eye can see despite his large size...
...slay both Kyou, the most dangerous member one of the Six Great Generals of Qin...
...and Geki Shin, a Great General renown for his part of in saving the State of Yan...
...he is also formidable without his podao, having killed a tiger bare handed...
...and proficient in Chi Manipulation
, capable of sending his inner chi into a opponent's abdomen rupturing their organs.
...overpowering and countering Shin, a proficient master swordsman, in terms of strength...
...and shows off his skill in assassination
as he kills Ma Kou, the Left Hand of Ou Sen...
The State of Wei's greatest practitioner in the art of Qiang
(枪: Spear) and widely considered the best in China, Earl Shi of the Wei Fire Dragons's
...fighting style and technique focused on completely overwhelming his opponents with sheer Power.
Haimura Moroha (Seiken Tsukai no World Break) is the current incarnation of Kensei Flaga, who took on nations by himself using his unrivaled swordplay, combat prowess and tactical skills.
Belzard (Highschool DxD) is the most powerful Red Dragon Emperor, having defeated two White Dragon Emperors in his lifetime.
Sun Wukong (Highschool DxD) The Great Victorious Fighting Buddha, is legendary for his strength and skills.
Hailed as the Violence of Heaven, Vasco Strada (Highschool DxD) is a supreme exorcist, capable of slaying the most powerful Devils and Monsters relying solely on pure might and skill.
With over 500 years of combat experience, Utsuro (Gintama) is one of the deadliest beings in the universe...
...fighting one on one with Umibozu, the Galaxy's Greatest Alien Hunter and strongest member of the Yato Clan...
...single-handedly slaughtering a majority of the Shinsengumi and Harusame's 7th Division of Yato members.