The mithril longsword is a longsword that is stronger than the black longsword/White longsword, but weaker than the adamant longsword. Like all other mithril weapons, it requires an Attack level of 20 to wield. Players can make a mithril longsword with a Smithing level of 56 using two mithril bars, granting 100 smithing experience. Players can purchase this longsword from the Varrock Swordshop.
|Chop||Slash||Attack and Hitpoints|
|Slash||Slash||Strength and Hitpoints|
|Block||Slash||Defence and Hitpoints|