Psychological and Emotional Flaws
Attention Whore Tendencies
Flaw: AFO’s primary motivation is to be universally hated and remembered, driven by a childhood desire for acknowledgment. This obsession with being the ultimate villain blinds him to practical outcomes.
Mistake: He prioritizes theatrics and sadistic displays (e.g., gloating over All Might, executing Lady Nagant publicly) over efficiency, wasting time and resources. His fixation on being noticed leads him to engage in unnecessary confrontations (e.g., fighting side characters instead of rushing to Tomura), accelerating his Rewind-induced demise.
Consequence: His need for attention leaves him vulnerable to humiliation, as seen when Izuku’s Kirk Summation exposes his loneliness, shattering his self-image and morale.
Lack of Emotional Understanding
Flaw: AFO cannot comprehend positive emotions, focusing solely on negativity (e.g., trauma, hate) to fuel his growth theory. This blinds him to the power of friendship and individuality.
Mistake: He underestimates Tomura’s retention of positive memories (e.g., League of Villains’ bonds), allowing Tomura to reclaim his body. Similarly, he fails to anticipate the vestiges of One For All and Tomura’s psyche uniting against him internally.
Consequence: This emotional blind spot leads to his vestige being outmaneuvered in Tomura’s mind, contributing to his final defeat.
Delusional Self-Image
Flaw: AFO believes he is above morality and invincible, often invoking an Above Good and Evil stance that masks his insecurities.
Mistake: He convinces himself that his actions benefit society through trauma-induced growth, a flimsy justification for sadism. This delusion leads him to overlook his mortality, as seen when he gloat over All Might instead of finishing him off.
Consequence: His overconfidence leaves him unprepared for setbacks (e.g., All Might’s initial defeat, Tomura’s rebellion), culminating in his erasure by Rewind.
Denial of Humanity
Flaw: AFO convinces himself he was “born evil” and represses empathy (e.g., toward Yoichi), viewing it as weakness.
Mistake: He lies about his Berserker Tears for Kudo, denying his guilt over Yoichi’s death. This self-deception prevents him from adapting to emotional vulnerabilities, such as his desire to reunite with Yoichi.
Consequence: His inability to accept his humanity leaves him hollow after Yoichi’s vestige fades, reducing his motivation to a spiteful vendetta that lacks strategic focus.
Strategic and Tactical Mistakes
Overreliance on Contingencies
Flaw: AFO’s All According to Plan mindset leads him to overprepare with contingencies, assuming he can always adapt.
Mistake: He underestimates the heroes’ ability to turn the tables (e.g., using Aoyama and Shinso to lure him out), relying on plans that collapse when faced with unpredictable resistance (e.g., Tomura’s willpower, heroes’ teamwork).
Consequence: His overconfidence in fallbacks (e.g., Rewind, Tomura’s body) backfires, leaving him without options when heroes exploit his weaknesses.
Poor Management of Allies
Flaw: As a Bad Boss, AFO treats followers as tools, fostering resentment despite his Pragmatic Villainy facade.
Mistake: He abandons the League during the Paranormal Liberation War, alienating Gigantomachia and others. His manipulation of Shigaraki as a vessel, rather than a partner, fuels Tomura’s rebellion.
Consequence: By the Final Battle, all allies (except Garaki) betray or abandon him, leaving him isolated and vulnerable.
Underestimation of Opponents
Flaw: AFO’s belief in his invincibility leads him to dismiss lesser threats.
Mistake: He underestimates Jiro’s Heroic Willpower, allowing her to break his life-support mask, and overlooks Bakugo’s resilience, leading to his final defeat. He also misjudges Class 1-A’s potential during the USJ attack due to Aoyama’s limited intel.
Consequence: These miscalculations expose critical weaknesses (e.g., mask dependency, Rewind limits), enabling heroes to capitalize on them.
Wasted Opportunities with Quirks
Flaw: AFO’s Quirk hoarding lacks strategic refinement, focusing on power over utility.
Mistake: He modifies Overhaul’s Quirk into Decay for Tomura, discarding its reconstruction ability, and fails to reclaim the original from Chisaki. He also doesn’t exploit stolen Quirks (e.g., Impact Recoil) effectively against non-physical attacks.
Consequence: His reliance on brute force (e.g., swollen mass attacks) leaves him slow and predictable, while Tomura’s instability undermines his vessel plan.
Physical and Practical Weaknesses
Unhealed Injuries
Flaw: AFO’s injuries from All Might never heal properly due to lacking Hyper Regeneration at the time.
Mistake: He relies on a life-support mask, a targetable Achilles’ Heel, instead of seeking a permanent fix. His decision to use Rewind late exacerbates this vulnerability.
Consequence: Hawks and Jiro exploit the mask, causing his body to shut down, paving the way for Endeavor’s fatal attack.
Overuse of Rewind
Flaw: AFO’s trump card, Eri’s Rewind, is a double-edged sword due to his advanced age.
Mistake: He wastes Rewind energy on sadistic battles (e.g., against side characters, All Might) rather than rushing to Tomura. His gloating delays his possession, leading to de-aging.
Consequence: He rewinds out of existence, failing to achieve his goals, as Bakugo delivers the final blow.
Physical Strain from Quirk Combinations
Flaw: Combining multiple Quirks (e.g., Air Cannon with Strength Enhancers) distorts his body, making him slow and vulnerable.
Mistake: He uses these Awesome, but Impractical attacks out of spite (e.g., against All Might, Bakugo), telegraphing his moves and inviting counters.
Consequence: Heroes bait him into wasting energy, leaving him open to devastating retaliations.
Key Narrative Mistakes
Making an Unstable Successor
Flaw: AFO’s plan hinges on Tomura as a vessel, but he cultivates Tomura’s hatred without ensuring loyalty.
Mistake: He subtly engineers Tenko’s Dark and Troubled Past (e.g., influencing Kotaro), yet fails to account for Tomura’s individuality and League bonds, leading to rebellion.
Consequence: Tomura’s willpower overrides AFO’s vestige, and his plan to steal One For All collapses.
Failure to Adapt to One For All
Flaw: AFO misjudges One For All’s resilience, assuming brute force suffices.
Mistake: He avoids subterfuge (e.g., tricking users into transferring it) and spends decades on a flawed vessel strategy, ignoring the Quirk’s collective willpower.
Consequence: His attempts to steal it from the 5th and 6th users fail, and Deku’s final blow, aided by vestiges, destroys his chance.
Tartarus Imprisonment Risk
Flaw: AFO’s survival after defeat relies on others’ decisions, which he cannot control.
Mistake: He doesn’t anticipate the government’s choice to imprison rather than execute him, allowing a Tartarus breakout that unleashes chaos.
Consequence: His escape, aided by Garaki, invalidates All Might’s sacrifice and creates a dual threat with Shigaraki.
Neglecting Yoichi’s Legacy
Flaw: AFO’s denial of his bond with Yoichi blinds him to One For All’s emotional power.
Mistake: He kills Yoichi and fails to foresee the Quirk’s vestige enduring, underestimating its role in his defeat.
Consequence: Yoichi’s vestige distracts him, enabling the final internal blow from Tomura and One For All’s inheritors.
Conclusion
All For One’s flaws—his narcissistic need for attention, emotional blindness, and overconfidence—combined with tactical errors like underestimating allies and opponents, mismanaging Quirks, and overusing Rewind, lead to his ultimate downfall. His mistakes, from grooming an unstable Tomura to wasting time on theatrics, reflect a man more obsessed with his Demon Lord fantasy than achieving lasting victory. By August 18, 2025, his legacy is reduced to a forgotten memory, undone by the very traits he cultivated to dominate the world.