In Norse mythology, the legendary weapon wielded by the god of thunder, Thor, is Mjölnir. This powerful hammer is not only a symbol of protection and strength but also represents the ability to restore order. Thor uses Mjölnir to combat giants and other threats to the gods and humanity. Its capability to return to Thor after being thrown symbolizes fidelity and the connection between the divine and mortal realms, underlining Thor's crucial role in defending both.