User blog comment:Water Dragon Slayer/DREAM BATTLE CHRONICLES: SECOND MATCH!/@comment-5268982-20130723211927

I think that, if Mavis was alive and Zeref could see her, she would probably win. Then again, we're too short on actual facts to judge this(we do not know if she can use any Magic by herself, or what Lumen Histoire is, or her/Zeref's actual strength) so yeah, perhaps if this blog happened later on, we would have more proof to judge the winner.