An Axe used by Thor (Marvel) in the Marvel comics and films. It is said to be even more powerful than Mjolnir (Marvel), and amplifies Thor's superhuman physical abilities besides acting as a conduit for his powers.
In the comics it was used by Beta Ray Bill after he returned Mjolnir to Thor, while in the films Thor uses it as a replacement for Mjolnir after it is destroyed by Hela (Marvel).