https://www.demilked.com/author/beersunday7/
Item Upgrading and Rerolling in World of Warcraft Upgrades can be added to items to increase their performance. Upgrades to gear are important especially in the beginning of. Upgrade your BiS (Best in Slot) items first, then proceed to other pieces of gear that fit your game. Upgrade tokens can be used in the upgrade window of an item to upgrade it. The slots for upgrade are different according to the type of item. Upgrade components Upgrade components are unique items that can be inserted into weapons, armor trinkets, gatherers and weapons.