The TokTz-Xil-Ek (also known as the Obsidian knife or Obsidian dagger) is a dagger-like weapon. It requires 60 attack to wield. It uses a stab attack style, like all daggers. Players can buy the TokTz-Xil-Ek at the weapons store in the TzHaar City for 37,500 Tokkul. As of the 15 December 2009 update, it is no longer possible to sell this, along with anything else to TzHaar shops. This weapon cannot be made using the Crafting and/or Smithingskill.
It is affected by the Berserker necklace, receiving a 20% damage increase when the necklace is worn.