User blog comment:Omega natsu2/Fairy Tail Episode 206: Panic of Library, Review./@comment-24277053-20141101104642/@comment-7418318-20141101105321

In the Kagura fight, Yukino was basically one-shotted. She never got a chance to even try to use martial arts.

Or maybe she only started to learn martial arts after losing to Kagura (or seeing Naval Battle on sphere vision and what happened to Lucy once she lost her keys) and realized for the first time that there might come times when she needs to be able to fend for herself without her Spirits.