User blog comment:IamJakuhoRaikoben/Chapter 447: Escape Battle, Review./@comment-7418318-20150805221320/@comment-5894890-20150806191002

@Sane I interpreted the same as Nick did. If she's able to change her form with no drawbacks, that would be pretty OP. I understand it, if it was just a boost in strength and combat ability, but a boost in magic power reserves? I don't think so. So in theory here, it costs here magic to use and maintain the form, in return Carla gains combat abilities and enhancements.