https://click4r.com/posts/g/18....212345/15-item-upgra
https://malletfriday7.bravejou....rnal.net/why-item-up
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 traded with the NPCs for upgraders of items Cuzolth and Vaskarn. Each item can be upgraded to its highest level for a specific slot at a time. After that upgrades to that slot will be cheaper. The pity system, which was introduced with The War Withi