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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 will quickly outclass them. An item can be upgraded up to six times. Each upgrade will add to the gauge of the item. Glyphs Glyphs are the upgrade materials that can be used to boost the quality of an item's features. Glyphs are commonly used to improve the performance of a weapon or armor but they can also be used to improve a hat, ring, necklace, or other accessor