User blog comment:IamJakuhoRaikoben/Chapter 334: Sin and Sacrifice, Review./@comment-4866818-20130607221936/@comment-7888801-20130608032304

Juvia is just passionate. She is motivated by a love for someone...it doesn't make her a moron, though poor girl is going to have a heart attack if she doesn't take some Prozac or something. And at this point, in my opinion, I'm not surprised by any magic because it makes as much sense as anything else in Fairy Tail. With that being said, if Ultear came up with something that could affect a living being because of an "upgrade" then I wouldn't be shocked.