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The Importance of Upgrades in World of Warcraft Upgrades are new items that boost your stats. They can be used to upgrade your armor, trinkets and weapons. To determine probabilities, item upgrades use a "upgrade pity". This system is designed to limit the risk of losing money and offer security when upgrading. Armor The item upgrader provides players the possibility to upgrade the level of equipment of their weapons, armor and trinkets. The upgrade is applied to the gear when you visit an r NP