https://output.jsbin.com/sixazegame/
The Item Upgrader in World of Warcraft The War Within introduced Valorstones, and Harbinger Crests as two currencies for upgrading equipment. These can be traded at the NPCs of item upgraders Cuzolth and Vaskarn. Each item can be upgraded to its highest level for a given slot at a time. Then, upgrades to that slot will be cheaper. Additionally the pity system introduced with The War Within lowers extreme variation in the chance to upgrade. Upgrades In gaming, upgrades are replacements for components that enhance performance or add new features. Upgr