Board Thread:Fanmade/@comment-31731691-20190816114648/@comment-38952966-20200604204258

Don't forget that GER is also described as the most powerful ability. It even says itself that "no ability can stand before me", though Araki likes to exaggerate Stand capabilities, particularly in side panels. Still, I find it likely the GER would retain movement and awareness during stopped time, considering he does so during erased time as well.

But yeah, GER is not omnipotent. Even existing outside of traditional causality, it has a few limitations. As we said, it seems like GER reverts to normal if Giorno withdraws it, so he can't have it all the time. It also seems like GER, ironically, can't revert things like death, since Giorno never uses it to bring Bucciaratti back. Perhaps it can't use RtZ on something that existed priorto itself?

This could be an inherent limitation on GER, or it could be that the immense amount of will and focus it requires to control a Requiem Stand (Polnareff himself was unable to control his) that Giorno can only focus it on one task per use. So when he used it at first, his sole focus was to defeat Diavolo, so that's all that GER could do.