https://blogfreely.net/peenbro....wn21/24-hours-for-im
World of Warcraft Item Upgrades Upgrades to items can be used to boost the stats of an item. Depending on the upgrade type, it may raise an item's Mark level or Rarity, and also boost other stats. Upgrades to gear in The War Within requires a specified number of Flightstones and Crests Each item has an upgrade track. Each upgrade increases the cost of the next item by a specific amount. Item Level The value of an item's base stats increases as it is upgraded. This value is the total of all of its leveled up perks (