User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 42: June 2015/@comment-1153699-20150702021033/@comment-25324252-20150702021527

You are misquoting Mashima. He stated "Correct. Plot-wise, she's (Cana's) the third/fourth strongest female member of the guild. It goes without saying which two hold the top two spots."