User blog comment:IamJakuhoRaikoben/Chapter 422: Orochi's Fin, Review./@comment-5268982-20150302165932/@comment-7418318-20150302171251

Now that you mention caster magic, I guess this is one of those border cases.

On one hand she didn't need the key for the light-magic enhanced kick itself, but then she did need it to go into the mode in the first place... that's a bit tough to decide between caster and holder for me, though I have a slight tendency toward caster too, but only very slight.