User blog comment:IamJakuhoRaikoben/Chapter 373: Life or Death?, Review./@comment-5233713-20140228215051/@comment-7418318-20140301020312

Did you forget that Kyouka's magic by itself is already supposed to empower the target (if they survive, which Minerva obviously did)?

And then there's also the fact that she was turned into a Demon and how she talked about how these new powers felt.

I think she's now quite a bit stronger than she used to be during the GMG and there she was already quite strong, though obviously not strong enough to go up against plot-armor + nakama-speech-spear or however you want to call the parts of the Nakagami set.