MonsterEnvy
Legend
It sounds like we probably play similarly. I just don't get the attitude expressed by certain posters that there is no circumventing the fate of non-believer characters. It's freaking D&D: Everything is malleable. Nothing is absolute. The slavish devotion to the dogma of "canon" on the forums is almost as bad as that of the in-game Realms' gods.
I kind of like the idea of a crossover, where the Gods of Greyhawk get wind of what's going on over in the Realms and pay a visit to the Realms to kick a little butt. AO turns out to be an agent of the Far Realm, subtly enslaving the entire Realms in an effort to bring about the destruction of the multiverse and the return of the Ancient Ones
Edit: For those who may not have spotted it, the clue was there all along: AO: Ancient Ones.
Why would the gods of Greyhawk do that? They have no motivation to do so and they share a bunch of gods anyway. They are no better then the gods of the realms and even if they did decide to attack Faerun for some reason just one of them has to say no and none of them can do anything.
Also why do you want to paint AO as a bad guy. He has done nothing wrong. The plan you are suggesting also makes no sense on AO's part as he predates all of the other gods and life on Faerun, is more powerful then them all and has actually cleaned up some of their messes. He also actively rejects worship. He does not grant any powers to those who worship them and instead makes them suffer bad luck until they stop. He is effectivly a nicer Lady of Pain that actually organizes the place.
Also AO is Alpha and Omega.