User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-34061653-20190104122109/@comment-34061653-20190104165534

Rias does need Gasper for Balor form but don't forget that Issei needed Ophis for Psuedo DxD. The difference is Rias was able to extend the time limit of her Balor form just by regular training while Issei needed a drink from a god and nearly died as a result. It's disappointing that for Issei who has all this potential he has, he still needed outside and nearly die just to reach god class while others like Rias, Kiba and Vali didn't. Hell I would say even Xenovia could probably beat CxC Issei.