https://jsfiddle.net/fontweasel8/pjy9rw5q/
The Item Upgrader in World of Warcraft The War Within introduced Valorstones, and Harbinger Crests as two currencies to upgrade equipment. These currencies can be exchanged at the NPCs for upgrading items, Cuzolth and Vaskarn. Each item can be upgraded to its maximum level for a given slot once. Upgrades to that slot will be less expensive afterward. In addition the pity system introduced with The War Within lowers extreme variation in the chance to upgrade. Upgrades In gaming upgrades are components that increase performance or add new featur