https://articlescad.com/20-up-....and-coming-item-upgr
World of Warcraft - Item Upgrade Item upgrade allows players to increase the level of equippable weapons and armor. This boosts the stats of the item and can also add buffs or rerolls an affix. It is important to keep in mind that while you can upgrade magic and common equipment, it is generally not worth the cost. Rare and exclusive equipment can quickly outperform the standard equipment and upgraded magic. Cost When a player upgrades an item, they must pay Gold for the upgrade.