Which Hero Academia Characters Have The Strongest Quirks?

I get way too excited thinking about this topic, because in 'My Hero Academia' the strongest quirks aren’t always the flashiest—they’re the ones that reshape fights and stories. Top of the list for me is All For One. Not just because it’s raw power, but because it can steal, stockpile, and redistribute quirks. That makes it a walking toolbox of broken options; when paired with a cunning user, it becomes almost unstoppable.
Right behind that is One For All. It’s crazy to think a quirk whose base is pure strength ends up being one of the most complex powers thanks to inheritance and skill. Once it accumulated extra quirks like Blackwhip and Float (and others that surfaced through the series), it turned into a multi-functional force—massive output plus varied utility. Izuku’s growth shows how a quirk can scale with training, strategy, and chemistry with its user.

I can’t skip Eri—her Rewind is borderline game-breaking. The ability to rewind biological states can heal catastrophic injuries and even revert quirks’ effects. Overhaul’s quirk is terrifying too; dismantling and reassembling matter at will has both combat and thematic weight. Then there’s Tomura’s Decay evolving into something intertwined with All For One quirks—suddenly it’s not just a single destructive touch. On the hero side, Endeavor’s Hellflame produces brutal offensive output, and Gigantomachia is a nightmare for anyone lacking raw durability. Personally, I’m always more interested in how quirks interact: synergy, counters, and limits make the fights feel alive. Watching a clever tactic trump brute strength is why I keep rewatching arcs from 'My Hero Academia'.

When I think about which quirks are the strongest, I sift through three axes: raw destructive power, utility/versatility, and game-breaking potential. On raw power, One For All and All For One are obvious; One For All gives enormous output while All For One’s multi-quirk arsenal creates situational supremacy. What fascinates me is how One For All grew beyond a simple strength boost by inheriting other abilities like Blackwhip and Float, effectively turning a single quirk into a suite of tools.
For utility, Eri’s Rewind towers above most. The narrative shows how her ability can reverse injuries and even biological states, which has huge medical and tactical implications—fights, resurrections, and healing all shift when someone can literally rewind. Overhaul’s quirk is also extremely versatile; breaking and reforming matter lets him create traps, heal (in odd ways), and reform weapons. Don’t forget Quirks like Permeation—powerful in hands that know how to exploit invulnerability windows. Stamina and user skill act like invisible balancing factors: a quirk that looks unbeatable can fail with bad control or poor planning.
I rate strength not just by damage numbers, but by how a quirk changes the rules of engagement. The best arcs—like the 'Paranormal Liberation War'—show this perfectly: it’s not only who’s strongest on paper but who applies their quirks creatively under pressure. That’s why I love talking about it with friends; every match-up reveals new angles.

I like to boil it down to a quick mental list when friends ask: All For One, One For All, Eri’s Rewind, Overhaul, and then situational names like Endeavor or Gigantomachia. All For One’s ability to steal and hand out quirks makes it conceptually the most frightening. One For All’s growth and stacked abilities make it the most impressive in practice—especially when you watch a user learn to combine strength with things like Blackwhip.
Eri’s power sits somewhere else entirely: it’s less about throwing people through buildings and more about rewriting living states, which can alter entire battles or even undo tragedy. Overhaul wins on versatility—reconstructing matter lets him craft outcomes few others can. I also love mentioning how weaker quirks can become dominant with excellent strategy or teamwork; a precise counter or clever gadget can flip the script, which is why matchups in 'My Hero Academia' remain so unpredictable and fun to debate.