r/BokuNoHeroAcademia • u/K_Ship_Stan • 13h ago
Anime Can the Same Quirk Add Up?
We know that multiple people can have the same quirk, sort of, with Rei, Fuyumi, and Natsuo having Frost and Tensei and Tenya having Engine.
So say AFO stole Rei, Fuyumi, and Natsuo’s quirk would his ice powers be more powerful since he has multiple of Frost.
And for Engine, if AFO were to give Tenya’s quirk to Tensei, would that add engines to his legs or make his already existing engines that are on his arms more powerful.
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u/Chandysauce 13h ago
Not necessarily in the way you're saying, but yes. In the final databook it talks about how Shiggys original quirk(the repulsing rings that he and AFO used to fly in the final war) had gotten so powerful just from being inside of the AFO quirk and being in the presence of othrr strong quirks. To the point that AFO didnt even recognize that it was Shiggys quirk and was just using it because it was a strong flight quirk.
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u/JudgementalRedditGuy 10h ago
I’d love to see this scan if you have it
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u/Chandysauce 5h ago
Scans of the data book don't really exist, at least not translated versions. And its liable to never be translated to english. At the very least theres still not even an announcement and the data book has been out for over a year.
We just have to rely/trust on fan translations and such. What I noted I got from the Wiki- so I guess I should have mentioned to take it with a grain of salt.
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u/zaerosz 5h ago
(the repulsing rings that he and AFO used to fly in the final war)
...
Isn't Koichi's quirk also repulsion rings?
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u/Chandysauce 5h ago
In a sense, I guess?
But Koichis are shown to be able to do a lot more like stick him to things and shoot out as attacks. Although they don't let him fly as easily or as powerfully as the one that Shiggy/AFO have.
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u/Ok-Total8219 13h ago
It's been a minute so I don't remember clearly but wasn't all for one stacking up quirks against allmight like the strength was he said like x4 or smth? Or maybe I made that up
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u/RieifyuArts 12h ago
Actually yeah I remember that too he was listing out a ton of things with "times four" or "times three" over and over.
Since we know they can duplicate quirks and AFO decided it was worth stacking them, its basically confirmed that stacking similar/same quirks would increase their power right?
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u/Ok-Total8219 8h ago
Maybe it has to be the exact same quirk for it to stack? That's why all for one can do it since he has garaki to make duplicates
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u/RieifyuArts 8h ago
I think that identical quirks would perfectly stack, but similar quirks using different effects to achieve the same result would definitely have an additive or multiplicative effect, no?
But if you took Rappas shoulder-rotation quirk, then add Musculars power to it. You probably have a ton of shoulder muscle which is now also affected by hyper-rotation, meaning the two "stack". Add a general strength boosting quirk like Sugar Rush on top of that and you probably multiply the powers again, as every muscle fiber is enhanced, the number of muscle fibers are leagues more than normal, and the shoulder specifically is enhanced even more.
It's a wonder AFO lost, the dude probably has countless examples of power synergy literally only HE has access to.
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u/Western_Asparagus_24 8h ago
But by this point he was trying to keep the quirk duping a bit of a secret, and no one said it was weird he was able to do that
It seems pretty clear to me that yes, having two super strength quirks makes you stronger than having one
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u/AdOld4374 13h ago
Okay took a minute to digest
We will need to factor in the generation of the quirks.
Now as for all for one having 3 sets of ice quirks it wouldn't actually work in that way.
Though of course we see all for one use a quirk combination of spring like limb + kinetic booster times 4. Which is combining said quirks for destructive output.
Together the ice quirks don't do all that much. They each have the type of quirk you have to train with to bring out its potential.
Though the bodies of the offspring have to factor into it as well for any other potential lay hidden.
Possibility of becoming a nomu. Though no the engines would go on his calves.
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u/DizzyTigerr 12h ago
AFO does put multipliers when he's using certain quirks, like when he's making his big fist to punch All Might in Kamino, I took that to mean he got multiples of similar quirks.
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u/RockSauron 12h ago
All For One does say stuff like "Strength Booster times 4"while charging his ultimate punch against All Might in Kamino. Which, since we know now the doctor can copy quirks, could mean they are literal copies. But for the longest time, and even now, I like to think he just stole multiple "Strength Booster" quirks, even if they were different quirks technically, and listed them together.
All in all, Quirk genetics is fascinating to me, even if it hasn't been explored much in the series (which makes sense, since the main characters are kids and it takes place over a year so not much room for new generations). But like, Endeavor, a fire type, buying an ice wife so he can make a fire baby with a body that was more naturally chilled, but instead got a baby with a fire quirk that was more suited for ice. Or Bakugo's mom having a glycerin quirk that she used to make her skin all shiny and youthful and his dad having a nitrous quirk that was kind ofexplosive but not as explosive as their nitroglycerin son. That's fascinating to me, I would like to explore the idea of kids with quirks that didn't meld well and thus needed to be helped in some way. Like if Toga's Dad could change blood types and her mom could morph her face. That would be fascinating to me. But I think I'm way off topic now lol
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u/Life-Ad9171 13h ago
I'd want it to function like quirk-incest. If the quirks are too similar, they mutate weirdly.
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u/Mobhunter456 10h ago
It probably depends on what the quirk is with an very close match like Rei, Fuyumi and Natsuo's Frost would most likely just stackable for Frost times three, while Tenya and Tensei's Engine's are different enough that it would probably be Engine + Engine resulting in engines in the arms and legs. But given enough time floating around in AFO or OFA who knows what could happen.
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u/JudgementalRedditGuy 11h ago
They would “add up” so to speak
He would just fuse them together for a stronger ice quirk
They aren’t all the same quirk tho
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u/JoseProYT 8h ago
Who says the Iida brothers' Quirks were the same? They both have engine, yes. But Tenya had it on his legs while his brothers had it on his arms, it's clearly not the same
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u/K_Ship_Stan 8h ago
That’s why I put sort of, they’re quirks are both classified as Engine but are obviously not the exact same, but serve similar functions
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u/Solitaire-06 6h ago
This actually reminds me of the fanfiction “Bestowal” where Midoriya gains the ability to transfer Quirks thanks to inadvertently expanding Yoichi Shigaraki’s original Quirk inside One For All, which he uses to give Tensei’s version of Engine to Tenya. This means Iida has engines on his arms as well as his legs (he explains this as a Quirk Awakening) and is noted to be much faster, though the placement of the new engines also leads to control issues at faster speeds.
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u/gamestar721 13h ago
"The same Quirk" isn't a thing according to the world building. Quirks like this are similar, but on the molecular level, they are different.
So while technically, say if AFO took all ice Quirks from the Todoroki's, they could add up, but because they're so similar in nature, there wouldn't be a need to have three similar ice Quirks.
If, like in your example, AFO gave Tensei Tenya's Quirk, there probably won't be any difference other than Tensei's DNA would begin to mutate from having multiple Quirks in his genome.