User blog comment:IamJakuhoRaikoben/Chapter 489: Universe One, Review./@comment-4449950-20160614085746/@comment-97.104.204.83-20160614124748

Maybe Mavis knows how to control her curse now, which would explain why Mavis wasn't worried in chapter 480 about her curse going crazy and killing everyone in the guild, when her body is freed from the lacrima.