[quote=@GrafRoy Zeppeli]
And yeah, that's what I meant by her glasses lol

Worded that badly. I meant she can destroy the gems and use the energy inside to power up other spells. Basically using them to fuel her other gems. 

Overall, though, is she like a bad character or do you think that tweaking the stuffs that you are saying will make her a-okay?

EDIT: Question, can the jewels vary in rank? Like, she carries twenty and their ranks vary from C to A(maybe lower if you think it best) as does their size? Of course, I'd count them as well. 
[/quote]

That's fine then.

Sure, just keep in mind that once you put prana into a gem, it gets limited in what you can do with it.

Changing the things mentioned should be fine.

Sure, so long as you specify what amount of each rank she has. Remember, Rin squirreling away all of her excess prana over ten years had 20 A rank jewels, and Rin was amazing "top 100 in the history of the Association"-tier in terms of talent, so keep that in mind.
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[@MeteorD]
Don't forget her Alluring Nightingale. I went to all the trouble of translating it from GO Mats, which wasn't difficult since I realized it was super similar to the Adonis skill.

[quote]Alluring Nightingale: A 
A fascination-like magic effect that affects men, but one can abate it so long as there is a will to resist. Complete evasion by means of a Magic Resistance skill is possible.[/quote]

Given that she has Alluring Nightingale, though, the effect of Whim of the Goddess will need to change. Just use the description from the Mats, since it mentions both beneficial and detrimental effects. If you have questions about what to expect from that, shoot me a PM.