User blog comment:B214/Question & Answers 5/@comment-98.227.238.52-20150513171226/@comment-3965848-20150513215255

I reiterate, Issei already has powers of both Ddraig and Albion, so whatever abilities this fusion form would have, Issei can already do it himself so there's no point.

@GooerGaming as a matter of fact Issei's currently coping with quite well without the need to fuse with Vali.