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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. These can be traded at the NPCs of item upgraders Cuzolth and Vaskarn. Each item may be upgraded up to its maximum level once for the slot. Upgrades to that slot are then cheaper following. Additionally the pity system that was introduced in The War Within lowers extreme upgrade luck variance. Upgrades In gaming, upgrades are replacements for components that increase performance or add new features. Upgrades can