No need to get worried, really. Right now it is just a proposal.
As H4H said, if there are other characters, whose niche are - for example - the whole techy stuff, then I can easily narrow it down some (i.e. dropping the whole Inventor / Engineering stuff would be no problem, if someone else wants to play a character with that shtick, but if noone does, I see no harm in her being able to be useful in that field).
That really depends a lot on what other characters are there...
BTW, Fusion isn't particularily good at combat. She only has straightforward damage attacks (there are a lot more options than just that) and only few combat-related Advantages. I would consider her combat-abilities pretty average for the PL.
As for the skills... those are quite average, too. Only Technology and Vehicles are very good. +10 is useful, but not that much, when the maximum at the PL is +20.
Benefit: Wealth is mostly just fluff... it is the most useless Advantage, ever (because there is nothing useful in the game, that you can buy with money... everything costs PP

).
Bye
Thanee