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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 traded with the NPCs for upgraders of items Cuzolth and Vaskarn. Each item can be upgraded to the highest level for a specific slot at a time. After that upgrades to the slot will be less expensive. The pity system that was introduced with The War Within, also reduces the extreme variance of upgrades. Upgrades In gaming, upgrades are replacements for c