User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-26926813-20171117093849/@comment-26926813-20171117095948

For me Maou-class has only one meaning.

But in text was compare that form with Sirzechs true from. It's mean that both Rias new form and Sirzechs new form are above Maou-class.

This is tehnique Rias develop to fight agains Gods and 2 Heavenly Dragons. But I don't know how strong that form is. Just a God-class or Heavenly dragon class