Ratter wrote:
I don’t really like the idea of a polytheistic society in which most people worship one god out of ten. I'd like to add a little more 'poly' in the theism, but also carve out something vaguely like the Church. I think both goals are doable.
Perhaps, although I can’t help but think that these two goals may be somewhat at odds with each other− i.e. making the world more polytheistic (in the sense that individuals worship multiple gods, not just one), while also creating a more unified church that is devoted to (I presume) just a few of them. One way this could work, though, might be do this as a kind of old religion vs. new church sort of thing, wherein these was an established tradition of worshipping multiple gods, and then a new church that is supplanting it.
Ratter wrote:
Larani, Peoni, and Save-K’nor- I will do something similar to what others have done, and play up the close ties among these three gods and their followers. In some areas, they are effectively a single church with three branches. I may play up the pseudo-Christian elements.
“Triadism” lives. *sigh*

I personally hate that particular model, although I understand why some embrace it. (It just seems so clichéd to me…. and I really dislike the fact that it turns Save-K’nor from a ‘neutral’ deity into a ‘good’ one.)
If it sounds good to you, of course, you should do it, but may I suggest that you consider some other options which may be more intriguing, such as:
-- Just use Larani and Peoni and don’t add a third god. These two they go well together, and are already established as ‘allied’ churches in existing material. Myth also recounts that Larani is Peoni’s daughter, and that’s the only familial relationship suggested in canon material− at least regarding the Harnic view of the gods. These two really don’t need a third god to turn them into a trinity.
--If you must use a trio, why not Larani, Peoni, and Halea? There seems to me to be something fun about having the “Church” in such a reconstructed Harn being devoted to the three female goddesses, while the male gods are all outside of it. And there is a kind of neat synergy between the three of them and the three basic social divisions of Harnic society− nobility, peasantry, and craftsmen/merchants.
-- Or, consider the possibilities of Larani, Peoni, and Siem. Again, that may seem odd at first− but they are the three undisputed ‘good gods’ of the pantheon, per Robin’s original design. It bears thinking about it least….
Ratter wrote:
I may include a Harnic equivalent of the Hesiod’s Theogeny, and possibly Homer’s two great epics. This could help tie the ten major churches together, but instead of a common scripture they would have some common ‘secular’ literature.
Isn’t that what Libram of the Pantheon is supposed to be (along with other tales and myths, such as are exemplified in the “Tales of the Lesser Gods” from
Gods of Harn)?
Ratter wrote:
I may add the concept of a single creator god, one that is envisioned differently in different cultures. This figure would remain absent or very distant, granting no miracles and responding to no prayers.
Two questions: (1) Why? What would be gained by this, especially if the god is to be remote and distant? (2) Why not elevate one of the existing gods to this station? Save-K’nor, who is the keeper of the Var-Hyvrak and the arbiter of gods and supposedly neutral seems a good candidate-- maybe not as a ‘creator’ god, but a ‘supreme judge / arbiter’ type of god? Or maybe Siem, who is described in canon as “The First God” and who indeed absent, having removed himself to another realm?