User blog comment:IamJakuhoRaikoben/Chapter 422: Orochi's Fin, Review./@comment-26052540-20150302165853/@comment-7418318-20150302170822

But with Lucy now being able to use weapon-less attacks through Loke's magic, that would be a good reason for her to learn martial arts of some kind or the other.

Between Capricorn, Loke, to some extend even Aries and Natsu there should be more than enough potential teachers around her, even before they manage to bring the guild back together.