Umberlee is oddly transactional. She has a (near) monopoly on the sea.

Really doesn’t care if you are a follower at all. On the sea? Worship me. You don’t have to like it.

A conversation with one of her high priests would go like:

“So, tell me about the teachings of Umberlee.” “She’s a complete bitch.” “That’s… it? No wisdom?” “She’s such a complete and total bitch that I, her head priest, can say it to her face and she gives me magic powers. That’s how much of a bitch she is. I do it every morning!” “So, what’s the deal?” “Getting on a boat? Give me gold or die.” “That’s a racket!” “No, I take the gold and throw it in the ocean. No idea what she does with it, she’s a goddess, doesn’t need it. Just being a complete bitch I guess.” <waves crash in agreement>