User blog comment:B214/Question and Answers 6/@comment-24098614-20170326152005/@comment-10330822-20170326225610

Still, it kind of disturbs he how quickly Issei caught up to him in terms of strength. I agree 100%, Vali has earned everything he has, his immense demonic powers are probably the only thing he has that just come naturally, even then, there was probably some training in there.

What also kind of bothers me is that I don't know quite how Vali is supposed to get even stronger. I mean, he could maybe push himself up to Super Devil-level naturally, and then stack the powers of Diabolos Dragon on top of that, that would make him insanely strong. But would it make him comparable to the kind of power Issei will have with his AxA and ExE? Which will be Great Red-based?

Part of me feels like Vali still has a lot of work ahead of him.