User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2602:306:CD9A:C860:1896:46C0:1D50:41A4-20181226150049/@comment-37165251-20181228214839

@Flame Uchiha

So Skill vs Power in a Way. But agaist someone like Sirzechs who can disperse his Power into small spheres that can cover the area and move to his will Rias teleport Tactic would not work as good.

So Issey, by all his raw Power, lacks still in point of technique