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The Item Upgrader in World of Warcraft The War Within introduced Valorstones, and Harbinger Crests as two currencies to upgrade equipment. They can be exchanged at the NPCs for upgrading items, Cuzolth and Vaskarn. Each item can be upgraded up to its maximum level only once for a slot. Upgrades to that slot are then cheaper afterward. Additionally, the pity system introduced in The War Within lowers extreme chance of winning upgrades. Upgrades In gaming upgrades are the replacements of compone