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World of Warcraft Item Upgrades Item upgrades are a way to increase the stats of an item. Based on the type of upgrade it can boost an item's Mark Level or Rarity, and also boost other stats. The process of upgrading equipment in The War Within requires a set number of Flightstones and Crests Each item has an upgrade track. Each upgrade increases the cost of the next item by a specified amount. Item Level When an item gets upgraded, its stats increase in value. The value is the sum of all the upgraded benefits (attack mag