For the last 18 months I’ve been working on the Praxians and looking at how there religion works in HQ2. This map from the Guide shows the zones of Storm influence on Prax itself. The outer zone is Kero Fin, the inner ones being Stormwalk Mountain. Within these regions Storm worship will always occur.
At the Dawn the Praxian tribes were in the top left region of this map, well within the powerful pull of Stormwalk. The Praxians along with their tradition have always known Orlanth and the Lightbringers as their Gods. Missionaries had reached the Paps by 35 ST and by then the Praxians were off on First Council adventures there after. Orlanth forms a cross-tribal society in the Praxian tradition.