Board Thread:General Discussion/@comment-25156739-20150914163822/@comment-38952966-20200830031748

Mystic Mania wrote: Pople claim that GER's "unbound by time!", or "it's totally impossible to kill Giorno", or things like that, but they pull those claims out of nowhere.

I don't think GER is all powerful, but I do believe based on what we've seen of it that it's completely impossible to kill Giorno while it's active. Awareness doesn't seem to matter, and neither does time. We know this because it activates during erased time, aka time that doesn't technically exist, and is even able to communicate with Diavolo within non-existent time without Giorno being aware.

However, range probably limits what it can affect (I doubt GER can use RtZ on something across the planet). Additionally, it's control over causality has limits. If Giorno cancels a cause, he cancels its effects, too. This is presumably why he couldn't bring Bruno or Narancia back: it would change their fight and hence they wouldn't defeat Diavolo.

As an offensive tool, GER is strong but not perfect. It can overpower King Crimson, so it's probably around Star Platinum level, but that's just a guess. I'm not entirely sure if the infinite death loops required GER to actually kill Diavolo to activate, since Trish says he's still alive, but it's likely.

A lot of this is of course presumption, but it's rooted in logic based on GERs limited appearance and basic Stand rules. I doubt GER could beat something like Made in Heaven or Notorious BIG in direct combat, but there's not anything they could do to it, either. It's not completely unstoppable, especially not to things outside of Jojo, but it's the closest thing we have to a "strongest" Stand.