Zamorak mjolnir

The Zamorak mjolnir is a two handed member's only weapon. To obtain one, either complete the Enchanted key miniquest or trade with another player. However, you can only receive one Zamorak mjolnir during the Enchanted key miniquest.

As its name implies, the Zamorak mjolnir is affiliated with the god Zamorak. It is tipped with Zamorak's symbol, an upside down 'M'.

Trivia

 * Mjolnir was the name of the hammer of the norse god Thor.
 * Before balanced trading, Mjolnirs were sold for 100k.