doctorbadwolf
Heretic of The Seventh Circle
Okay, i'd forgotten about the dragon gods. I don't really ever do anything with dragon religion in my Eberron games, so, fair enough.The major constellations in Eberron are dragon gods.
Not necessarily every god would need to be a manifestation of another. Again, if you say that every god is tied to a constellation, then there will be some constellations that are foreign to other geographic locations. So there could be more geographically specific constellations/divinities. Or even that other cultures may believe that their god Lathander isn't Pelor, but, rather, that Pelor is merely a representation of Lathander. But deities for the earth, moon(s), sun, or other visible planets may differ from those of the constellation deities.
But keep in mind that the Sovereign Host did do the whole "But your local god is just an aspect of Balinor..." which is one reason why the Sovereign Host was so ubiquitous and able to bring other peoples into the fold. Though in some cultures the gods of the Sovereign Host are rearranged into different configurations.
My own preference when having deities is to work with a manageable set, though I would likely include other religions outside of this pantheon, much as Eberron did: e.g., Silver Flame, Path of Light, Blood of Vol, Undying Court, etc.
Maybe the Dragonborn Empire has a syncretist approach. Every cultural deity they encounter is mapped as a constellation in the heavens and a part of the larger Ouroboros figure.
I'm well aware of how the Sovereign Host works, and that's fine for Eberron, where I find the Host to be by far the most boring religion. I'm just not into doing the same thing in a new world, except perhaps as one culture's belief, like how Romans liked to pretend that other culture's gods were just differently named versions of their own, but most other cultures learned about foriegn gods and viewed them as distinct gods, sometimes adding them to their worship as distinct gods.
Anyway the dragonborn culture viewing all gods as part of the Uoroboros figure Io is fine and cool, but in general I'd rather have the various people's either share gods or have their own localized gods that are not ever treated as an aspect of anyone else. One Island might call Pelor "Belor" or "Pelkor" "Pell", but it's "Odin" and "Woden", not "Odin is Mercury" or whatever.