Vigdis! She's the Valkyrie protagonist for my short story Valkyrie: Black Swan, which I'm doing for a contest.

The story itself is an alternate look into the Valkyrie clan's inner workings. A Valkyrie having wings is rare and hasn't happened for nearly 800 years. Vigdis (War Goddess/Spirit) didn't have a name up until the moment her black wings appeared. She was given a name, and her new role in leadership allowed her declare what she wanted to oversee.

Vigdis then singled out a Midgard warrior named Mioko. She had been watching this young fighter and said that she aimed to protect her. Given that the Valkyrie's assigned role is taking away the slain, this is at odds with Odin's decree and she knows that it will set her at odds with the Allfather.

Vigdis eventually links up with Mioko and serves to teach her about Rune magic as well as the forces arrayed against her.