Hello. This is a question in terms of game design.
I am trying to homebrew using Pathfinder 2e, and I am trying to figure out a good mechanical system for determining how many domains per deity.
EDIT: I am curious, why do full-fledged deities have specifically "4" domains? Why not three domains, or five domains?
Is it tradition?
EDIT: Why stick to 4 domains? Is there a mechanical reason?
I heard that it was to make sure that all domains were distributed among all 9 domains? (Lawful Good, Neutral Good, Chaotic Good, Lawful Neutral, Neutral, Chaotic Neutral, Lawful Evil, Neutral Evil, Chaotic Evil).
