User blog comment:MarineroLelouch/Power Ranking and Classes./@comment-3290324-20140211014255/@comment-24467372-20140211235721

@Jakuho: I agree. Mirajane is equal to Erza,but in hype. When it comes to feats,Erza is ahead of Mira.She tanked some crazy stuff,she fought fast people. She defeated people her tier and above her tier since the story started. I actually listed Mirajane(hype) on SS-Class in the first place,but I just thought that wasn't exactly fair to say because of a very old statement. More than 3 arc's passed since then.

Onto Mavis;she invented the three Great spells. Which suggests she can utilize them as well. Fairy Law is absolute.Fairy Glitter has incredible feats,Being more powerful than Jura's biggest nuke.And also Fairy Sphere,the best defensive spell on the verse that protected the guild from Acnologia. Although this is hype,she's the only master who has all the three spells. Makarov only used FL so far,so did Purehito. That and the fact that she is an entity that Zeref acknowledges makes her somewhat that level. She was the Master while there were two monster tier mages were around her(Purehito,Walrod).