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The Item Upgrader in World of Warcraft The War Within introduced Valorstones, and Harbinger Crests as two currencies for upgrading gear. They can be exchanged at the NPCs for upgrading items, Cuzolth and Vaskarn. Each item can be upgraded to its highest level for a particular slot once. Upgrades to that slot will be cheaper following. The pity system that was introduced in The War Within, also reduces the extreme variance in upgrades. Upgrades In gaming upgrades are components that improve performance or provide new functionality. Upgrades can be purchased or ear