The Norse Gods are a belief system available to the Vandal, Barbarian and Valkyrie. Its malus is slowing the player down 5%.
Selecting this power from the menu will allow you to ask various norse gods for assistance. Alignment dictates which Gods are available and their willingness to help.
All alignments have Freya (gives inspiration, temporally increasing stats and damage), Thor (smites your enemies) and Eir (heals the player).
Neutral: The fourth god for Neutral is Tyr. When asked for assistance he will spawn a pet monstrous wolf named Fenrir. Fenrir is very large, wears a cursed astral collar, has very high stats, and functions like a pet dog, even detecting cursed items. If Tyr is angry, he will spawn Fenrir without the astral collar which makes Fenrir hostile. Fenrir does NOT regenerate, and upon death he returns to Valhalla along with anything he was carrying. If summoned again, he will reappear in the same state as at the time of death, eg. if he was polymorphed he will stay polymorphed.
Chaotic: All gods will require you to wait before you may ask their assistance. The menu will say: "X will X you... later". This means that you must wait. If you ask for assistance at the wrong time, the gods will punish you, usually by dealing damage. They will also sometimes punish you even if you ask at the right time.
The fourth god for chaotic is Loki, offering trickiness, which puts down a trap (actual effect unconfirmed).
Lawful: The fourth god for Lawful is Odin. If you ask for his assistance, he will give you the godly ability to cast fireball with 100% chance for a short time. However, it requires a fair bit of mana, so you may still not be able to cast it if low INT and WIS result in a low mana pool.
Evil: Gives you a fifth goddess called Skaði who will enchant your weapon when happy.
Skaði appears in the menu when the player equips a bow. She can train the archery skill.
Bragi appears in the menu when the player equips a musical instrument. He can train the music skill.