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World of Warcraft - Item Upgrading The upgrade option lets players increase the gear rating of an item up to 700 points and give it a bonus. Items can be upgraded if they are in your inventory and you bring them to the Kiln. Certain items are worth upgrading because of their unique stats. (For instance, a perfectly broken point armor that is rolled can be used in melee PvP). Other items such as weapons aren't changed much after an upgrade and aren't worth the cost. Weapons Upgrades to weapons can increa