User blog comment:B214/Shin DxD 1 discussion/@comment-77.182.39.188-20181004201928/@comment-77.181.96.181-20181007175200

I am not sure, if this will happen, but it could be the case. Riasa mentioned in volume 2 or 3 that no host of the Boosted Gear could fought a satan or god, but now we are shin volume 1. Ise and Vali are heavenly dragon class, but the problem is, that they cannot maintain these form as much they like. The brother of Grafia who had a artificial boosted gear, Ddragi commented, that his was a satan class in base and that he could bring more than Ddragi full power. So at least do so, they need to get a bare minimum satan class in base.