User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-92.21.29.42-20190623153730/@comment-34061653-20190629133835

You're just proving my point. As you said, against Nimura, it didn't connect because she kicked it away so Dressbreak was useless. Against Nyx, Issei couldn't do anything to her "on his own". That's why in their first encounter Nyx was able to get away scout free without problems. Issei needed Ingvild and Ddraig.

As for beating a female opponent without needing his perverted. He one shotted (almost killed) Sairaorg's queen Kuisha. Against Diodora's sevants, it was Koneko who took them out.