Aristo said
Don't want to go all fantasy on this, but would it be reasonable to have daemons/monsters, god-gifted weapons and mutations that your people can utilize, or are we keeping religion and the like to a more realistic "I believe X, therefore Y." and separating reality from mythology?
My nation has a close relationship with religion, instead of gods. For example, they manifest themselves through six third party priests. The kicker is that they cannot leave their home city or else they lose their connection, therefore they die since they're a few hundred years old. Although they don't really have any powers, they're simply there. I'm pretty sure that's the most religious standpoint on magic in any faction, and it's not very powerful at that. But I'd venture a guess that sentient demons wouldn't be existent on this plane.