User blog comment:B214/Volume 22 spoilers/@comment-64.237.231.92-20160722012904/@comment-29256333-20160724010822

in the future ise and vali will be destruction god class that will be capable of fighting great red and weaking it. shiva himself can fight the beast 666 head on, inflicting heavy damage on it but cannot kill it. right now both vali and ise are almost equal, both dxd mode (before ophis weaken it) and DXL are equal. ise got ophis power when she was definite and so his mode is a finite form but still heavy burden ise. in time during the azazel cup or later him and vali will rival or equal indra for the possible war. after all this is ise and vali last power up tranformation because they say that there no other mode that could surpass it. ise and vali can only train and battle to increase their power. the other transformation is the dragon form like (tail-beast mode) for if they want to perform large scale attack better. right now ise and vali are strong but there are still gods stronger than them good because we can get more tight call battle like vali and apophis. also shiva is only second to great red. and so hopefully ise and vali may eventaully surpass the two heavenly dragon in they pass before the lightnovel end.