Mjolnir

A picture of Mjolnir

Mjolnir is a hammer forged from Uru. Created by the dwarves on Nidavellir, it was commissioned by Odin and used by Hela in their conquests throughout the universe. The hammer was later passed down to Thor at his coronation. Following the attack on Jotunheim by Thor, Odin stripped Thor of his powers and sent him and Mjolnir to New Mexico; Odin later gave back Thor his powers and Mjolnir.