I recently had a mildly lawful character with whom I prayed to Legifer. Unfortunately, he was displeased even though I had read one of his books many times, and set me on fire, instantly killing me. I had 44 hp and ended up like -17. I didn't have any fire resistance at all, but it felt like a bit too much of a punishment for praying to an angry god. I think it might need some balancing, at least for early game, and also considering now burns lower your total hp and stats.