User blog comment:IamJakuhoRaikoben/Chapter 334: Sin and Sacrifice, Review./@comment-5201137-20130608072239/@comment-7418318-20130610102835

He is able to create Living Magic (I think one of the guild masters called it that, but I'm not sure).

Examples of this Living Magic are Lullaby and Deliora, who despite being artificial constructs made by Zeref somehow also have a live of their own.