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The Item Upgrader in World of Warcraft The War Within introduced Valorstones, and Harbinger Crests as two currencies for upgrading equipment. These can be exchanged at the item upgrader NPCs, Cuzolth and Vaskarn. Each item can be upgraded to its maximum level once for one slot. Then, upgrades to that slot will be cheaper. In addition, the pity system introduced in The War Within lowers extreme chance of winning upgrades. Upgrades In ga