https://notes.io/w3Q82
https://grau-barrett.federated....journals.com/why-peo
http://b3.zcubes.com/v.aspx?mid=13296433
Item Upgrading and Rerolling in World of Warcraft Items can be upgraded to increase their effectiveness. Upgrades are essential for gear, especially in the beginning of the game. Begin by upgrading BiS (Best-in-Slot) items, then work on other pieces of equipment that fit your build. Upgrade Tokens can be spent in the upgrade window of an item to upgrade it. The number of upgrade slots is different according to the typ