Top 15 Anime Sidekicks Way More Powerful Than The Hero

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Sidekicks do more than crack jokes and carry gear. In plenty of shows they are the ones carrying battles, rescuing leads, and turning the tide when it matters most. Here are fifteen supporting characters who consistently outclass their protagonists in raw ability, skill, or battlefield impact, with a quick note on who brought each story to life behind the scenes.

Killua Zoldyck

In ‘Hunter x Hunter’, Killua’s assassin training gives him speed, technique, and judgment that outstrip Gon for long stretches of the story. He develops Godspeed, which lets him move and react at lightning level. His tactical sense often prevents disasters the hero would have walked into. The 2011 series from Madhouse showcases these gaps clearly in major arcs.

Mikasa Ackerman

In ‘Attack on Titan’, Mikasa’s combat scores and real battlefield results place her well above Eren through much of the early campaign. She is the one who can consistently cut down multiple targets and keep squads alive. Even as Eren becomes a central force, she remains the most reliable soldier in close quarters. Wit Studio and later MAPPA present her as the Corps gold standard.

Saber

In ‘Fate/stay night’, Saber is a heroic spirit with stats and skills far beyond Shirou’s human limits. She handles top servants while he struggles to survive. Her instincts, magic resistance, and swordsmanship decide fights that would end instantly without her. Ufotable’s adaptation underlines the gap every time she takes the lead.

Alphonse Elric

In ‘Fullmetal Alchemist Brotherhood’, Alphonse’s armored body gives him durability and stamina Edward cannot match. He performs advanced transmutations without circles and holds off powerful homunculi in extended engagements. His calm decision making often stabilizes dangerous encounters. Bones frames Al’s advantages in duels and siege moments across the series.

Megumin

In ‘Konosuba’, Megumin can obliterate large scale threats with a single Explosion that outmuscles anything in Kazuma’s toolkit. Her spell is costly, but the destructive output is unmatched in the party. Major bosses and obstacles fall because she can deliver one decisive strike. Studio Deen leaned into the spectacle of that power during the early seasons.

Kallen Kozuki

In ‘Code Geass’, Kallen’s Knightmare Frames become unstoppable weapons in her hands, especially the Guren with its radiant arm. She routinely protects Lelouch and shatters enemy lines while he commands from safety. Her one on one duels decide operations that strategy alone cannot finish. Sunrise animates these mecha battles to highlight her edge over the lead.

Akatsuki

In ‘Log Horizon’, Akatsuki serves as Shiroe’s front line bodyguard and executes stealth work he simply cannot perform. She clears elite mobs, scouts dangerous zones, and eliminates targets with precision. Her class build allows burst damage and control that keep the party alive. Satelight’s first season establishes this clear combat hierarchy early.

Rem

In ‘Re Zero Starting Life in Another World’, Rem brings speed, strength, and battle magic that Subaru lacks entirely. She carries fights against demons and deadly cultists while he plans and negotiates. Her ogre lineage lets her push past wounds and keep fighting. White Fox makes her frontline role unmistakable in the heaviest arcs.

Arthur Boyle

In ‘Fire Force’, Arthur’s plasma blade cuts through threats that overwhelm Shinra and others. He scales rapidly in high pressure encounters and duels captains and pillars on even terms. His odd focus quirk often boosts output when the mission needs it most. David Production emphasizes his cutting power and technique during key set pieces.

Kohaku

In ‘Dr. Stone’, Kohaku’s speed, strength, and tracking ability solve problems brute force can handle while Senku works on science. She beats veteran fighters, hauls heavy materials, and serves as the party’s point defense. Her field skills protect fragile inventions and plans at every step. TMS Entertainment frames her as the shield and spear of the Kingdom of Science.

Zenitsu Agatsuma

In ‘Demon Slayer Kimetsu no Yaiba’, Zenitsu’s Thunder Breathing First Form gives him blistering speed that outpaces Tanjiro in crucial clashes. When he enters a focused state, he finishes demons before they can react. His growth adds more forms and consistency to that speed edge. Ufotable animates these bursts to show a clear power spike above the hero’s early level.

Rider Iskandar

In ‘Fate Zero’, Rider overwhelms top tier servants with raw might, charisma, and a world class Noble Phantasm. Waver depends completely on Rider’s strength to survive Holy Grail War engagements. Strategic retreats and bold charges hinge on Rider’s command of armies. Ufotable stages his set pieces to make that dominance obvious.

Raphtalia

In ‘The Rising of the Shield Hero’, Raphtalia handles offense while Naofumi focuses on defense and support. She cuts through high level monsters and human foes with practiced swordplay. Her growth through experience and equipment keeps the party competitive against escalating threats. Kinema Citrus illustrates this division of roles in every major battle.

Erza Scarlet

In ‘Fairy Tail’, Erza’s Requip arsenal lets her adapt to nearly any opponent with the right armor and weapons. She is ranked among the guild’s elite and often steps in when Natsu hits a wall. Multi enemy fights and endurance trials swing because she can switch builds on the fly. A 1 Pictures presents Erza as the guild’s most dependable closer.

Sebastian Michaelis

In ‘Black Butler’, Sebastian’s demonic abilities put him far beyond anything Ciel can face directly. He dispatches assassins and monsters with speed and precision while managing every detail of the mission. Information gathering, infiltration, and combat all fall under his effortless control. A 1 Pictures frames him as the ultimate fixer who makes the young earl’s goals possible.

Share your favorite overpowered sidekicks in the comments and tell us who else belongs on this list.

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