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World of Warcraft - Item Upgrading The lets players increase the gear rating of an item by up 700 points and also give it a bonus. Items can be upgraded if they're in your inventory and you bring them to the Kiln. Certain items are worth upgrading due to their distinctive stats. (For example an excellently roll breakpoint armor is used in melee PvP). Other items like weapons don't change much after an upgrade and aren't worth the effort. Weapons We