Ruby Rex is a very calm and collected girl but is also not afraid to get into fights. She's a strong girl that can show everyone that she's a force to be reckoned with. 

I like to have something similar to Jill Valentine from Resident Evil 4, or Loona from Helluva Boss. (Links provided for voice examples)

Loona: https://www.youtube.com/watch?v=Ahz8dDbSfQE

Jill Valentine: https://www.youtube.com/watch?v=OOSHQ9qMADc

With the lines provided, she's witty, confident, and overall basically humiliating them before the fight even starts.

(You can even make up your own lines if you'd like, I am free to hear any of them as long as they are related to the lines given.)

Any software and equipment can be used, just be sure it's good volume!