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Items and Upgrade Components in World of Warcraft Upgrading items can be a great way to increase the value of your weapon and armor. Upgrades to common and magic gear are rarely worth it, as rare or exclusive items are likely to outperform them. A product can be upgraded up to six times. Each upgrade will increase the gauge of the item. Glyphs Glyphs are the item upgrade materials that can be used to boost the attributes of an item. Glyphs are typically used to upgrade a weapon, or armor however they can also be used to improve an e