Deku a.k.a. Izuku Midoriya’s power in My Hero Academia has changed him beyond recognition. Just how strong is he now?

Power is everything in My Hero Academia. Born without a Quirk in a society where 80% of the people have supernatural abilities, Izuku Midoriya becomes the strongest hero from being a powerless fanboy. Deku from My Hero Academia has experienced an amazing changeover since inheriting One For All from the former Symbol of Peace, All Might. He began as someone struggling just to control his newfound power and has now evolved into a master of multiple Quirks and battle abilities that place him among the elite heroes of his generation.
The current manga storyline has showcased Deku reaching heights that even All Might in his prime might not have achieved. The ninth and final wielder of One For All, Deku has become the culmination of generations of power stockpiling, resulting in abilities that can shake the foundations of cities and challenge even the seemingly unstoppable Shigaraki Tomura. But just how powerful is Deku from My Hero Academia now? Let’s take a look into the true extent of his abilities.
The Foundation of Deku’s Power in My Hero Academia

At the core of Deku’s power is One For All, the most unique Quirk in My Hero Academia. Unlike most Quirks that remain static, One For All grows stronger with each generation. When All Might passed this power to Deku, he received something far greater—a Quirk that had been stockpiling energy across eight previous users.
The base power of One For All allows Deku from My Hero Academia to direct immense physical strength throughout his body. Initially, this manifested as explosive eruptions of power that his incompetent body couldn’t handle. Early in the series, we witnessed Deku sacrificing his own fingers just to generate enough force to change the weather during the entrance exam. His journey to master this raw power led to the development of Full Cowling, a technique that distributes One For All evenly throughout his body.
Commencing at a mere 5% in the early stages of My Hero Academia, he slowly increased his bearable output to 45% by the time of the war against the Paranormal Liberation Front. At 100% output, Deku’s strength rivals or even surpasses All Might in his prime, capable of changing weather paths with a single punch and causing shockwaves that can level buildings.
Nonetheless, what truly isolates Deku from previous One For All users is the quirk’s evolution. Due to the phenomenon known as Quirk Singularity, One For All has arrived at a point where the vestiges of previous users and their original Quirks have revived within Deku. It provides him with powers beyond mere super strength that have transformed him into something the series has never seen before—a true one-man army.
Deku’s Multiple Quirks

The revelation that Deku from My Hero Academia could access the Quirks of previous One For All users fundamentally changed the power ceiling of the series. While All Might only wields the accumulated strength of One For All, Deku gained access to six additional Quirks that dramatically expanded his combat capabilities.
Blackwhip, inherited from the fifth user, Daigoro Banjo, was the first extra Quirk to manifest. This ability authorizes Deku to develop dark tendrils of energy from any part of his body, delivering him improved mobility, grappling capabilities, and the ability to restrain opponents. Float, the Quirk of the seventh user, Nana Shimura, grants Deku levitation abilities. Fused with One For All’s raw power, Float converts from simple levitation into high-speed flight.
Smokescreen from the sixth user En provides tactical advantages by allowing Deku from My Hero Academia to create thick clouds of smoke, perfect for stealth approaches or quick escapes. Danger Sense from the fourth user, Hikage Shinomori, functions like a supernatural sixth sense, warning Deku of impending threats and giving him precognitive battle awareness that few can match. Fa Jin, the third user’s Quirk, allows Deku to store kinetic energy through repeated movements and release it in explosive bursts. This ability enables a technique called “Faux 100%,” where Deku can achieve power equivalent to 100% One For All while only using 45% of its output.
The final Quirk, Transmission from the second user, permits Deku to alter an object’s acceleration upon touch. When combined with other Quirks like Fa Jin, it creates the devastating “Gear Shift” technique that pushes Deku’s striking power beyond 120% of One For All’s maximum output, making him temporarily unbeatable in My Hero Academia.
Measuring Deku’s Destructive Potential in My Hero Academia

Early in his hero journey, Deku from My Hero Academia was already capable of city block-level destruction. His Delaware Smash during the USJ incident generated enough force (calculated at approximately 55 tons of TNT equivalent) to part a small artificial lake. By the time he fought Muscular, Deku was able to overcome a villain who could withstand attacks that could shatter cliff faces.
As Deku’s control over One For All improved in My Hero Academia, so did his destructive output. During his combined attack with All Might in the Two Heroes movie (confirmed canon by the creator), their Double Detroit Smash generated energy equivalent to approximately 8 megatons of TNT—enough power to completely devastate a city. Even attributing only half this power to Deku still places him at mountain-busting levels.
Perhaps the most impressive display of Deku’s power came during the Heroes Rising movie, where Deku and Bakugo temporarily split a massive storm system. Analysis of this feat suggests energy output in the teraton range—sufficient to destroy a small country. While this was accomplished under special circumstances, it demonstrates the upper ceiling of what Deku can potentially achieve in My Hero Academia.
In direct combat scenarios, Deku has shown the ability to contend with Shigaraki Tomura, who is repeatedly compared to All Might in terms of raw power. Using only 45% of One For All in combination with his additional Quirks, Deku could temporarily restrain and damage a Shigaraki who required super regeneration just to survive their encounters. This places Deku’s combat capabilities at a level that very few characters can match, possibly making him stronger than All Might at his peak.
Deku’s Intelligence as Power

Usually neglected when discussing how powerful Deku from My Hero Academia has become is his impressive intellect and strategic thinking. Even though it’s not a Quirk in the standard sense, Deku’s analytical mind symbolizes one of his weapons and has been essential to his rise as a top hero in My Hero Academia.
Even before acquiring One For All, Deku was meticulously recording hero abilities in his notebooks, studying their strengths, weaknesses, and combat patterns. This obsessional analysis has translated to battlefield brilliance, allowing Deku to maximize his input against opponents who may possess more raw power or experience.
Deku’s ability to combine his various Quirks demonstrates his tactical genius. The development of techniques like “Faux 100%” shows his capacity to overcome physical limitations through the intelligent application of his abilities. By using Fa Jin to store kinetic energy and releasing it alongside 45% of One For All, Deku from My Hero Academia achieves the power of a full-strength attack without the associated physical drawbacks—a perfect blend of power and strategy.
His battle against Overhaul showcased this intelligence, as did his confrontations with Gentle Criminal and La Brava. In each case, Deku identified critical weaknesses and developed counters on the fly. During the war arc of My Hero Academia, his ability to rapidly master and integrate multiple Quirks into his fighting style proved that his greatest weapon might be his mind rather than his muscles.
Conclusion
Looking at the complete picture of Deku from My Hero Academia, it becomes clear that he has ascended to a power level that places him as the strongest in the entire series. The question remains: has Deku from My Hero Academia surpassed All Might to become the strongest hero?
The evidence suggests he has. While All Might possessed tremendous raw power, Deku’s combination of strength and versatility provided advantages his mentor never had. Deku can fly, detect danger before it arrives, create smokescreens, manipulate objects with energy tendrils, store and release kinetic energy, and alter the acceleration of objects he touches. All in addition to the same super strength that made All Might legendary.
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