Not explicitly Norse but the Celtic chooser of the slain? Sounds like a Valkyrie to me.The Morrigan - Shape-shifting Celtic goddess of War, Fate and Death. Story in "The GODDESSES / Psychology of Female Power"
ODIN, the Norse god of wisdom. war and magic, is called Allfather for he is indeed Father of the Gods and he played a central role in myths about the creation and destruction of the world. Odin, Odin, change the winds and turn the tides.The Vikings