User blog comment:Xhatefate/DxD Updates~/@comment-2.218.32.235-20161230063544/@comment-2.218.32.235-20161230091639

I haven't played one pokemon game lol and yeah that was what Ishi was on about. Maybe we'll see this Z technique thingy in the next volume to be able to beat Dulio with the help of the church trio; the main focus of next volume. Issei and the trio use this Z technique, a team move to beat his team. This is true because this is what Ishibumi was referring to:

Pokemon  Sun and Moon Z moves!