Chainsaw Man Fandub
CrystallinedVA for Power
Power is a self absorbed, childish, greedy fiend with a loud, bombastic personality that forces your attention to her, she also uses some old-timey language like "Tis" sometimes. Her pride and ego give her a constant need to attain victories (no matter how small) and refuses to be "wrong" in any given situation, resorting to blatant lies and shifting blame in order to keep her in the "right" and ease her mind when she actually does make mistakes or even stealing other's victories and claiming them as her own.
As for her voice, I think she'd have a medium-high voice with a tomboyish attitude. When she's yelling or exclaiming (you need to be loud fr), I imagine it sounding similar to angry Princess Unikitty from the Lego Movie (odd comparison but I'm I'm looking for that guttural sort of growl from the bottom of your throat, you get what I'm saying?). I swear this is all important.
[Exclaiming;Playfully sinister]
"Tis mine! All mine!" (*insert playfully evil cackle here*)
[Initially cheery but the last sentence basically sounds like a female Hitler speech]
"If I win a Nobel Prize, humans will grovel before me! And then I'll use my Nobel Prize as a stepping stone to become Prime Minister! I WANT TO WATCH HUMANS SUFFER, SO MY FIRST ACT AS PRIME MINISTER WILL BE TO IMPLEMENT A 100% SALES TAX!!"
[Bombastic;Announcing presence;LOUD(like yell, this is the one where you gotta do that guttural yell I was talking about/this is basically make or break)]
"PUH-PUH-PUH-POWER!!"
I feel like the first like could be said a little more "savagely" but I don't mind your rendition, I like the second line so not too much to say there, and for the third line all I'd say is to make it a little quicker. But all in all, it's pretty good.