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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. These can be exchanged at the item upgrader NPCs, Cuzolth and Vaskarn. Each item can be upgraded to its highest level for a specific slot once. After that upgrades to that slot will be less costly. The pity system, which was introduced in The War Within, also reduces the extreme variance in upgrades. Upgrades In gaming upgrades are the replacements of componen