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"
Vikings are some of the coolest figures in history and led to some of the most influential impacts on pop culture today. Norse mythology inspired the creation of the superhero Thor and his villainous brother, Loki, and the Viking culture.