[@Zarkun]
Sometimes it is hard indeed, and because I wanted to explain why she has the black aura within her backstory it became harder than I thought...
BTW: I changed her Shadow Leap towards Aura Reaper, because of the fact that you said that blue would become overrated :) The abbilitie allows her to imprison a small part of her enemies aura, but only if her dagger(s) scratch her opponent. They can't use that part of their aura for a short duration (max 10 seconds).
Hope that's alright with u Zarkun :)