User blog comment:ElectricEnder222/Volume 2 Episode 4 Discussion/@comment-1888392-20140815045732/@comment-2006510-20140815050520

Hardly; she can still be attacked easily (such as after Yang blew off the other arm, Roman kicked her away). She's just a LOT more dangerous the longer she fights - but even that has to have a limit, thanks to her Aura and personal energy reserves

She can still be knocked unconscious, or if you can manage it (IF being the word), have her run out of Aura to defend with... then she's just as vulnerable as any 17-year-old girl, defense-wise