User blog comment:B214/Shin DxD 1 discussion/@comment-33939194-20181102011753/@comment-181.115.109.112-20181102071258

Super devil is roughly equal to heavenly dragon class, take for example Rizevim vs true dxd Issei, although he got defeated he was going more or less toe to toe with Issei, remember that Rizevim is the weakest amoung the known super devils. Yet Rias in balor form couldn't even defeat a 80% Fenrir which isn't heavenly dragon lvl at that % even when she had the compatibility advantage against Fenrir.