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World of Warcraft - Item Upgrading Item upgrading allows players to increase the gear score of an item to 700, and then add a final perk. Items can be upgraded by keeping them in inventory, and then taking them to the kiln. Certain items can be upgraded to increase their stats (like an ideally broken point armour that is rolled for melee PvP) while others like weapons do not change significantly after an upgrade and thus aren't worth upgrading. Weapons Weapons can be upgraded to improve their numeric stats such as damage to attack, crit chanc