https://squareblogs.net/sampan....frost3/20-up-and-com
World of Warcraft - Item Upgrade The feature of upgrading items allows players to boost the item level for weapons that can be equipped or armor. This increases the stats of that equipment, and also sometimes adding buffs or the rerolling of an affix. It is important to remember that upgrading your magic and common gear isn't always worth it. Rare and unique gear will quickly surpass modernized equipment and magic. Cost The player must pay gold to upgrade an item. The cost to upgrade an item