2- Will the Soru Soru no Mi make Nami Over Powered?
I am explaining this because I know this will trigger a lot of people especially those who see Nami as nothing more than a fan service character.
Now why is Big Mom overpowered? Does it have to do with her devil fruit? Well the answer is NO.
Big Mom at the age of 5 annihilated a village of Giants. This village had powerful warriors. In a single rampage she destroyed the inhabitants without even trying. During all this, the Giants who are considered to be the most powerful army could not even scratch her. And she did all this without her devil fruit.
She induced fear with her overwhelming strength and durability. So far the only time we see her take any real damage was when Mother Caramel’s portrait was endangered and she became mentally upset. But when she was thinking straight, she took Luffy’s Kong Gun like it was nothing. That’s how powerful she is. She is over powered even without her devil fruit. The Soru Soru no Mi only adds to her strength. It does not make her over powered but it gives the over powered lady a huge array of abilities to use. Thus taking her from over powered to nearly invincible.
If the Soru Soru no Mi is with someone else, they will be strong no doubt but it won’t make them over powered. Now to explain this, I want to remind you guys as to how the Soru Soru no Mi works. That fruit like Hancock’s Mero Mero no Mi is a special fruit which depends on the ability of a user to infuse a particular mental state on their opponent. By this I mean, if Hancock can’t make her opponent lust on her, she can’t turn them into stone, like she could not turn Luffy to stone.
Same way, if Big Mom can’t induce fear into her opponent she can’t suck that person’s soul. Which is the reason Big Mom couldn’t suck Jinbei’s soul when he declared to her that he was quitting her crew.
So if the user of the Soru Soru no Mi devil fruit can’t induce fear onto their opponents, they won’t be able to use their fruit’s complete potential. This is what happened to Mother Carmel, she was strong yes which is why she was able to stop the fire in village from spreading by creating Pandora. But she was not over powered because she could not induce fear on anyone.
Now let us see this with Nami, can she induce fear to her opponents? Yes she can be scary at times, but in the end if she fights someone, no way would that person be scared of her. This is the reason if Nami inherits the Soru Soru no Mi, she will be really strong but she won’t be over powered.