https://fkwiki.win/wiki/Post:7...._Little_Changes_That
World of Warcraft - Item Upgrade Item upgrades allow players to raise the item level of weapons and armor that are equippable. This increases the effectiveness of the equipment, in addition to sometimes adding buffs or rolling an affix again. It is important to keep in mind that upgrading common gear is not always worth it. Rare and exclusive equipment will quickly surpass upgraded magic and common gear. Cost The player must spend gold to upgrade an item. The cost of upgrading an item