User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2208155-20181221114645/@comment-37165251-20181221202128

...sometimes I ask myself if he is not more Powerful than Ophis with Ddraig together (since Ophis is severly weakened and split into herself and Lilith)

But since they have some years still time...I mean Issey did go from weak pervert Human into Heavenly Dragonclass in 1,5 - 2 Years