All Might pushed the quitk to the brink and Deku broke the limiter

all might is basically the guy who didn't do the tutorial but fought the final boss anyway

It's also stated that all might basically gave the quirk rapid growth and made it super powerful to the point he has defeated all for one twice. While even his predecessor couldn't beat all for one. I think this has to do with all might being quirkless originally and bringing out the true potential of ofa. He evolved it to that point then when passed onto deku, the other quirks became strong enough to manifest too.

Because he wasn't the protagonist of MHA. That's the real answer.

All Might’s secret quirk was obviously bringing out the best in everyone, including one for all itself

All might was such a bad ass, we need a movie fully dedicated about his prime

It should also be noted that most of this growth happened while All Might was carrying it since he is the only one to hold it long. Basicly OFA he received and the one he passed were drastically different in power.

Man fucking imagine how absolutely violated AFO would have gotten if Prime All Might had access to all the quirks in OFA lmao oof

They were storing all the power in separate glasses, until they found the right empty glass that can hold all that power at once.

All Might contribution to One for All was the vital “how not to die in like, 10 years after inheriting this thing.”

OFA needed to hit the singularity point before the other quirks could FULLY manifest. I say fully because there have been hints since the first episode that all might almost unlocked the other quirks. What happens when All Might is about to deflate? Smoke appears. What happens before all might jumps away after meeting deku? He repeatedly moves his legs up and down like fa Jinn. There are even several points in the show where all might gets alerted out of nowhere of danger, similar to danger sense.

All might with all previous quirks would be an absolute monster.

I think of it as OFA was constantly stockpiling power and quirks never getting a break like an someone who is overworked. But when it went to All Might it finally got a break to rest from constantly trying to copy an entire quirk every time there was a new user. Then Deku came along and it started developing on all the work it put in previously.

It’s explained during his convo with Shimura that the power wasn’t ready yet or the time wasn’t now. The quirk singularity point for OFA hadnt happened until reaching Midoriya.

i also wondered why he couldn't use other quirks in ofa

All might is the goat, bro's the only one who beat all for one twice

All might contributed to the quirk as well. Both him and the fourth user passed their whole life to unravelling OFA secrets. All might also created most of the moves deku uses. All might is also the only OFA user so far that has been seen to be able to harvest OFA energy to literally change his appearances.

I like the fire example, where the core of ofa needed more heat to melt away and be usable, so it took multiple generations of “fires” or wills to melt it into its current usable state

40 long years allmight held the title of the strongest and one for all that man is beyond everything he became him

The stockpile quirk given to the 1st wielder became All Might's quirk which made OFA grow which unlocked the others quirks

Pre Singularity vs. Post Singularity

Bro forgot to mention that he also wrecked the hell out of that All For One and defeated it

Imagine if he never got that injury that nerfed him. He would’ve just stumbled upon those quirks overtime and become even more of a powerhouse than he already is

It totally make sense other one for users died early age beacuse of quirk infaction. Only the quirkless users become the strongest.

I look at it like every user before All Might kept adding ingredients, and All Might was the first to actually just let it cook since he had nothing to add himself. Now Deku has it after that cooking period and it's now ready to serve

Horikoshi: “Random bullshit plot convenience go!”

I think it's just a matter of refinement, with the acquired quirks being dormant until the base Quirk is strong enough to enable the usage of those quirks. The original wielder, AFO's brother, alluded to Deku as basically being the singularity for the Quirk. I think All Might pushed the Quirk to progress to the point that was necessary, so that all Deku had to do was prepare his body enough to accept multiple quirks.

Because it wasn't time yet- they literally said "it's time" when they were giving Deku the powers

i thought all mights muscle form was his quirk

Except for black whip it would seem to me like all my did have access to all of the quirks it just wasn't conscious access. He just naturally used them in tandem.

I'm still saying he WAS able use all those quirks BUT internally. Where Gear shift and Black Whip, are like that of GOTO, Where I feel Float and smoke were just minimized especially when you see him gas out when he converts to Allmight form. where I still say its utilization. Where I like to feel Allmight just adapted it INTO himself, where I also feel it means it basically cultivated 14ALL for a generation on top of it.

My theory was always that he had a transformation quirk (muscle form) but just wasn't strong enough to use it without OFA, since we can see him struggle to use it even with a weakened version of OFA

What about the possibility that Almight wasn’t quirkless and maybe had a quirk similar to the first user.

but all might can fly, and nana shimursa's quirk was flying

I thought he said said "only a quirkless loser" when I first heard it 💀

You can see him using one of the other quirks in the beginning from when deku grabbed his leg after all might saved him from the sludge monster thing

Oooh so that is why one for all looks completely different between almighty and deku

There was a conversation between All Might and Deku where All Might said that he saw a vesage who said something like "it's not time yet". According to All Might, his former mentor Nana Shimura also saw the same vestige who said the same thing. I can't remember the episode though. I have to rewatch the whole series again before the next season starts.

All Might was the definition of Built different.

All might beat all for one TWICE but the cheeky bastard just had to keep coming

All might has said he had access to some of the quirks but he had to use them in a way that made it look like he had one singular really op quirk. So its possible he was using them in ways he didn't realize. All might used them as a blend but deku seems to be able to use them individually.

Ok I still would like to know where the muscle form comes from though

Thank you man for finally explaining it

It might be because the quirk was finally passed from a quirkless to another quirkless.

In short the quirk singularity didint/hadent been evolved enough for Toshinori to use the quirks. Bc as the quirk kept getting passed on the Q.S got bigger and bigger until BAM! It finnaly got to the 9th user and most likely the last one was chosen and with all that bulit up power it manifested the Pervious users quirks.

The software din't updated yet

All might is also like the reason the quirk became strong enough to pass on earlier quirks. Without his like high octane experience points one for all wouldn’t have leveled up like this

Before this, I thought it'd be because All Might suffered an Injury and lost th ability to fully use OFA before he could awaken the other Quirks

The other theory is that all might isn't actually quirkless- but had a latent quirk that was useless, aka his muscular form.

Technically not true. Some of the other Quirks did manifest within Toshinori; the smoke when he’s pushing his limits and powering down, the fact he retains air time longer than what should be possible. I doubt the others came into play but suffice to say, he did something with them, even unintentionally

My guess is that with his injury he couldn't. and even then it took Deku time to unlock even one of them, so it might've just been a matter of built up power.

This instrumental chill af

Im pretty confident that the reason why he couldnt use the quirks is because he himself had a quirk. One that relies on stored energy to use. Its the reason why he has a muscle form, as he thought he was quirkless before but thats because he didnt have any ability to gather and store energy. But when he gained one for all he obtained access to said form. Its also the reason he could use one for all at 100% right off the bat. Thats my theory at least. Oh, and the fact that the show states only a quirkless user of One For All can draw the true power of it out, this clearly implying that only a quirkless user can awaken the Quirks inside it. Now if all might was quirkless he would have absolutely been able to draw this power out as he is clearly the most powerful User that we have seen. With this not being the case for some reason and Midoriya unlocking new quirks in a matter of months leads me to believe that All Might has a quirk being what I stated before. This is an edit btw

I think it more likely All Might knew he wouldn't be strong enough to be the pinnacle of heroism and to stop any and all villains, so he focused entirely on increasing the power of One For All rather than all aspects of it, which gave Deku juuuuuust enough strength to overcome his obstacles. He planned ahead rather than focusing on the now, which is a pretty consistent trait of his.

All might was so strong he didn’t need to figure out the other quirks had the situation changed they would have presented themselves

OFA hasn't matured enough before All Might got it, and he made it the Power house that it is

Honestly i find the additional quirks kinda lame but ultimately its whatever. The story and the characters carry it so its no big. The real reason why All Might couldnt use them though was because the writer thought of them later. Which is fine btw. People who complain about that sort of stuff have never written anything in their lives and shouldnt be taken seriously.

You can think of it as a mixture of quirk singularity and OFA finally maturing All might spent 40 years with quirk Also a empty vessel is far better then a full one.

Basically think of OFA as a Pokemon and All Might level grinned until it was a level or two away from evolution

So basically all might edged one for all to the MAX, and then had sloppy seconds and the end 🙂

If all might had all of them available he would have been like close to Superman using ofa at 100 percent then with like the others like gear shift change to get like a 200 percent smash and turn everything into mist really with a punch. And danger sense he'd be UNTOUCHABLE. At least in my head anyway.

Short explanation: Plot convenience

Another thing it is also told when deku has the meeting with the vestiges that they allowed him to use the other quirks and it was black whips user that started this, and the others followed soon after except the first and second user for a while. They also didn't know that quickness individuals could bring out the full potential of one for all since they only realised when all might got a vestige in OFA so they only knew when it was past to deku

I still think it's a plot hole, he should have been able to access at least 2 or 3

I mean.. you're not wrong but you forgot the really big reason the personalitys in One For All emerged. Shinso. They may have even said Deku may have never unlocked the other quirks without Shinso (but memory is a touch hazy so I could be wrong on that point) During the Sports Festival Shinso used his mind control on Deku, but surprisingly his mind control effected the dormant personalities inside of Deku as well. Its true that One For All needed time to grow, but its equally important to note Shinso's quirk acted as the final catalyst One For All needed to fully awaken. If thats not enough, let's look at the first time Deku actually spoke with a previous user. Where was he and what was he doing? Under Shinso's mind control again. This was likley done because One For All has always required the participation of others. It only exists because the quirks of 2 seperate people were altered and merged by a third person. It's power is derived from many generations of users. And in the end, it's greatest trait was unlocked by the quirk of another person. Fitting.

Also the fact that All Might isn't quirkless, just had a useless quirk before he got One For All. (His Muscle Form is a sort of "inflation" quirk. It's bulks him up in size and appearance but doesn't actually give him any strength.)

The Creator to All Might was just like "your not that guy"

It’s explained in the anime that all night is NOT quirkless. His quirk was simply increase in size similar to mt lady but not nearly as big. The second form all might takes has always been his quirk all for the just allowed him to use strength that resembles his body. (Before all for one he didn’t get any power up when changing in mass)

Its because of plot contrivance & a blatant retcon.

How did this confuse people? Its told in the show and manga...

My headcanon is that all might had a secret quirk which is his strong form. But he could only activate the strong form with a certain amount of power (base ofa)

My theory it needed to stockpile enough power to activate all the other quirks but the other users died quickly due to having multiple quirks or afo killing them. All the years it got to sit in all might gave it the time it needed to charge up then deku also being quirk-less right after all might gave it the opportunity

Sounds like a skill issue

All Might even bodied AFO so hard AFO was forced to use life support to stay alive. Thats why he is goated

"Why couldn't I use all the quirks in one for all? Because I only need one to get the job done!!!" -All might... if he wanted to flex

Imagine how broken all might with the other qiurks would be

OFA is that legendary weapon youre friend got that he gives you when you start the game to make it easier for you

We'll never have to fear because he will always be here!

Didn’t All Might use the smoke quirk anytime his muscle form ran out? 😂 That smoke saved his secret identity after he first met Tomura

Think of All for One as making bread dough and All Might’s generation was mixing the previous ingredients together, kneading (smashing) the dough, baking it, and later passing on the task to Deku who then handle the final product. 🍞

He kinda was using them unintentionally if we pay attention. He was on the cusp of using them freely and Deku broke through to be able to use them freely

Bro become no.1 hero with just muscles

I hear some fan theories/head cannons that all might could access the quirks. Using float to allow him to jump higher and longer without damaging the ground as he leaps. Dangerous sense manifests as an uneasy feeling when something's going to go wrong. Smoke screen activates every single time all might deflates to hide his true form and thats the mist you see etc

Almighty is the guy who doesn't study but aces the test

I like to think that OFA needed to stockpile the experience of someone quirkless using it before it's potential could develop in someone else quirkless, as they would be capable of drawing out it's strengths further.

In the vigilantes manga all might had something resembling danger sense when he was meeting the police officer but that might have just been because it was needed for context in that situation and wasn’t anything to think to hard on

When you think abt it almight had gear shift

The question I have is finally addressed.....so now, I can put my mind to rest....

And that's only 9 generations, imagine the 20th generation user, bro is gonna blow up the solar system.

I like the idea of midorya having a quirk that lets him to be able to use them and it was like the first user useless without the other quirk being given first

Deku was already into Quirk analysis of others. Maybe his subconscious mind connected with the Hidden quirks and hit the unlock feature. Because all the previous users just got OFA and didn't know anything about other quirks, they just did their own while Deku observed everyone around him his whole life...

It literally give an explanation in both the anime and manga all might tells midoria that the power of one for all is like a small ball and everytime it gets passed down it gets slightly bigger and it just so happened to get big enough to grasp and control by the time it got to midoria

All Might is amazing, Second Favorite MHA character cause gotta rep my boy Twice(R.I.P.).

Just remember, All Might’s hero record is literally perfect. Maybe not explicitly stated, but when you really think about it, he has a perfect record. Man’s literally saved everyone in every disaster he helped in and never lost a fight against a villain. He truly was the number 1 hero in the world

Back all might, we need him again!

All might started to manifest the other quirk abilities when he had the one for all quirk, the smoke that came out of him when transforming into his skinny form

Deku looking back at all the previous One for All users like the freaking Avatar looking at all their pass lives 😂

Also if you remember they showed almight in the what i like to call the “electric form” like when he fought afo and i think the other time was when he was young

This might be my favorite what if

I kind of like film theory’s theory that All Might did have a quirk, that being a quirk that changed his bodily structure to become larger and more lean, thereby allowing him to use the quirk to its fullest potential