In Infinity War, Thor travels to Nidavellir. A new weapon, an ax called Stormbreaker, is forged for him courtesy of Eitri. The ax allows Thor to return to Earth to help his friends in a battle in Wakanda. The axe is one of the oldest tools developed by humans. Ancient traditions associated the axe with lightning, water, and fertility, attributing to it the power of making or stopping rain.
Creation and Significance
Stormbreaker replaced Mjolnir upon the hammer’s destruction in Thor: Ragnarok. Since Infinity War, it has been his weapon of choice. Stormbreaker was forged from Uru metal on Nidavellir. Although Stormbreaker and Mjolnir have very similar properties, Stormbreaker is more powerful. The reasons are that Stormbreaker is larger and it is an axe, which could be more dangerous than a hammer.
Battle Against Thanos
After catching Stormbreaker, Thor returned it. Rogers uses Mjolnir, and Thor uses Stormbreaker in the final battle against Thanos. After Thanos is defeated, Rogers returns Mjolnir.