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Items and Upgrade Components in World of Warcraft Upgrades can increase the value of armor and weapons. Upgrades to common and magical equipment are not worth it, as rare or unique items are likely to outperform them. Upgrades can be added to an item up to six times. Each upgrade will increase the item gauge. Glyphs Glyphs can be used to improve an item or boost its characteristics. Glyphs are commonly used to improve the performance of a weapon or armor however they can also be used to improve an earring, hat