How much crossover elements will affect Jaunes personality??
... Son of a bitch, he got it in one.
Well, that's
part of it. Essentially, the lower down the list you go, the more powerful you would be, but the more reasons Jaune will have to be a social pariah, whether self-inflicted or otherwise.
Think about it. Kageyama, from Mob Psycho 100, when he hits 100%, he becomes a
force of nature. He hits 100, you
lose, do
not pass Go, do
not collect 200 dollars. Therefore, the less Jaune cares about people, the less chance of his emotions getting the better of him, the less chance of him accidentally hurting his frie-
acquaintances like he did his sister in the alley. A social pariah, for the good of others.
Pillar. "I eat people and Grimm for sustenance and use my body in weird and horrifying ways to kill things, such as using the tendons in my arms as whips, and I can do all this because I'm the most evolved being on the planet." Creepy, yes, useful, yes, overall able to look past it because he's (read: you're) a nice guy? Yes.
Aberration.
YOU EAT SOULS. IN A WORLD WHERE SOULS HAVE BEEN SCIENTIFICALLY PROVEN TO EXIST AND BE
REALLY IMPORTANT TO THE PROPER FUNCTIONING OF A HUMAN BEING.
I CANNOT BEGIN TO DESCRIBE HOW HORRIFYING THAT WOULD SEEM TO PEOPLE.
MEANWHILE- ahem, meanwhile, on the other end of the scale, we have "I know how to do
everything," powers easily explained off as a Semblance if he wears gloves, and "Oh hey yeah I have a cool talking sword."
The lower down the list you go, the more objectively powerful you are, but the more inherently dangerous you are to the people around you, and the more Jaune's personality changes to either make him less willing to make friends, or creepy or severe or otherwise just
dissonant enough that people would rather not make friends with him in the first place.
Post-Process discovery edit:
HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO SLAP THAT DUNCE CAP ON ME MOTHERFUCKER-