Mithril hasta(kp)

Mithril hastas are a one-handed spear that is either made after being taught the smithing part of Barbarian Training (requires you to do Tai Bwo Wannai Trio to learn), or bought from the Grand Exchange. Making the mithril hasta requires using a special anvil south of Otto Godblessed with 55 Smithing and one mithril bar and one maple log. To make this spear into a (kp) spear, you must use Karambwan paste on the hasta. Karambwan paste is made by poorly cooking a raw karambwan after or during Tai Bwo Wannai Trio.