User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-2602:306:CD9A:C860:ADF7:BBD3:E780:15AC-20171206031730/@comment-26926813-20171209040600

Fenrir in 100% is Heavenly Dragon-class and above most of Gods. He is comparable with Ddraig and Albion in their Prime. So in 80% he should be at least God-class. Or even Hades-class.

And I read volume myself. In text was cleary write that: "Like Sirzechs incarnation of Destruction form, Rias new form is surpass Maou-class".

And yes I'm not see any difference in power between old-Maou and current Maou. Their all Maou-class. The only difference is Sirzechs and Ajuka who were Super Devil with Heavenly Dragon-class power.