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Items and Upgrade Components in World of Warcraft Upgrades can increase the value of weapons and armor. Upgrades to common and magical equipment aren't worth it, as rare or unique items will soon surpass them. A product can be upgraded up to six times. Each upgrade will add to the gauge of the item. Glyphs Glyphs can be used to improve an item and increase its attributes. Glyphs can be used to improve weapons or armor. They can also be used to improve the appearance of a ring, ha