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The Item Upgrader in World of Warcraft The War Within introduced two gear upgrade currencies: Valorstones and Harbinger Crests. These can be exchanged at the item upgrader NPCs, Cuzolth and Vaskarn. Each item can be upgraded up to its maximum level only once for one slot. Upgrades to that slot are then cheaper following. Additionally the pity system introduced with The War Within lowers extreme chance of winning upgrades. Upgrades Upgrades are elements that boost performance or add new features. They can be bought or earned through many ways, including through in