Zanik's crossbow is a quest item used in The Chosen Commander. Is it initially given to you by Oldak after giving him the focusing chamber and the energy projector. Oldak uses these to upgrade Zanik's crossbow from a normal bone crossbow to a weapon that might defeat the Bandos avatar. You then give it to Zanik, who uses in the battle. When Zanik tries using the special attack, Bandos will damage the crossbow, scattering the energy projector, focusing chamber and Zanik's crossbow (broken) around the area. After you repair the crossbow, you can use it on the Bandos avatar to trigger the special attack, defeating him.
You receive an equipable version of Zanik's crossbow as a reward for completing the quest.
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