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The Importance of Upgrades in World of Warcraft Upgrades are a different kind of item that can provide an increase in your stats. You can upgrade armor, weapons and trinkets with these. To calculate probabilities, upgrades are based on "upgrade pity". This method is intended to limit the extremes of luck and provide a good safety net while upgrading. Armor The item upgrader gives players the ability to upgrade equipment levels of their weapons, armor and trinkets. The upgrades are applied to the gear throu