Salthorae
Imperial Mountain Dew Taster
It doesn't help that consistent cosmology has been D&D's strong suit.
Good point

Isn't Ao himself specifically an overgod of Aber-Toril? And, some deities (like, say, Corellon Larethian) are present in several worlds.
Also true.
Ahh, if only Spelljammer were still canon. That helped with the cosmological load as deities could be blocked from Crystal Spheres or not (by Ao and others like him), but they had to be in the Sphere to have worshipers, etc.
