Reidane, Goddess of Justice seems like a somewhat odd choice, since there's no direct parallel in the pantheon, but the identity of Norse gods is a lot more fluid than in some other pantheons. Odin might be the wisest of the gods, but he's not exactly god of wisdom. Baldr might be the most beautiful, but he's not really god of beauty. Skadi is the snowshoe goddess, but she's not goddess of snow shoes.
Redane could be a Skadi parallel-- she's certainly fearsome.
If there aren't sagas in the set, it's a travesty. Saga is an Old Norse word for criminy's sake.