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Item Upgrading and Rerolling in World of Warcraft Upgrades can be made to items to improve their stats. Upgrades are important for gear, especially in the early game. Start by upgrading BiS (Best-in-Slot) items and then work on other equipment pieces that will fit your style. Upgrades to items are made by using Upgrade Tokens to fund the item's upgrade window. The slots available for upgrading vary according to the type of item. Upgrade components Upgrade components are items that can be put i