[@Karos] I see what you're saying, but the thing is, if she were limited to only physical contact it would be more dangerous to her trying to remain up close and having to keep her physical hand on that person. It's a bit unreasonable. 

I mean, for one, it takes time, a lot of time, for her to be able to drain aura from someone. She already will have to take it little by little, because how often do you see someone actually touch someone else in combat for more than a second? She wouldn't be able to win with a single toich. Fighting her over a long period of time would result in getting your aura stolen. 

Does that kind of clear it up a bit? I certainly don't think it's any easy win as it may look