User blog comment:Miskos3/Fairy Tail 528: Dragon of Magic, Review/@comment-24039234-20170325174042/@comment-7418318-20170325224634

I don't think Christina has a crew. I think they even outright said so back in the Nirvana arc.

If everything runs with magic, it just needs one person to steer it... and half a dozen to hold it together if it's busted up. ;)