[@Eviledd1984]: Okay, uh... Hrm. Where to begin.
First: This isn't a game, so Frisk's abilities become nigh-worthless. In Undertale, his abilities only work in respect to the other residents of the Underground, but that stuff doesn't transfer well when comparing him to... Well, characters in every other setting.
Also, I'm absolutely not allowing any rewinding of the world. No Ekko ult, man.
And if you take that part away from him, he's essentially just a kid. Nope, not happenin', man.
Second: Prosciutto. The ability is, for lack of a better term, broken as a shattered glass window. Indiscriminately aging everyone in the area's just an ability I refuse to allow, mainly for how it not only tampers with the characters that other people are playing, but also because it's just screwing with people. Gotta deny this here, too. No way I can think of at this moment on how any of that ability would be balanced, so no go.
You see, Jojo villains are done in such a way that the characters can carefully play around them because Araki's great at storytelling, but are OP when taken at face value. As seen here.

Also, I see you've copypasted stuff from right off the wikis. Don't do that. Spoilers are bad for people, man.