Talk:Priest of an unknown god
Kinda major spoiler, so I'm not putting it on the main binder page: The Unknown God is learned by regifting 5 artifacts (1 for every priest). I personally think that's a bit excessive, as the spirit doesn't grant that much benefit, but that's just me.
Keep in mind that you can use nameable artifacts for this purpose (Sting, etc.). There should be more than enough for the priests.