https://blogfreely.net/timestr....eam32/10-item-upgrad
The Item Upgrader in World of Warcraft The War Within introduced two gear upgrade currencies: Valorstones and Harbinger Crests. They can be exchanged at the NPCs for upgrading items, Cuzolth and Vaskarn. Each item can be upgraded to the highest level for a particular slot once. Then upgrades to the slot will be cheaper. Additionally the pity system that was introduced with The War Within lowers extreme chance of winning upgrades. Upgrades Upgrades are parts that enhance performance or