Name: Anna Andersen
Alias: Fulgora
Gender: Female

Race: Human, some Asgardian blood
Alignment: Chaotic Good
Age: 19

Appearance: Blonde, blue-eyed, and six feet tall, Anna cuts a very imposing figure. She generally wears shredded jeans and a biker jacket with a black metal T-shirt underneath.

Skills: Experienced brawler and mechanic. 

Abilities: Wields Mjolnir, and uses its basic abilities (firing lightning, returning after being thrown, superhuman strength and durability). Still learning how to use it properly.
Weaknesses: Loses all abilities when separated from Mjolnir; also becomes fatigued by overuse of its powers.

Likes: Fighting, drinking, and loud music. Also dogs.
Dislikes: Trickery and being ordered around.
Sexuality: Bisexual

Hope this works for you, I just like the idea of someone finding Mjolnir in the wreckage of Thor's last battle years afterward.