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The Importance of Upgrades in World of Warcraft Upgrades are a different kind of item that can provide a boost to your stats. They can be used to upgrade armor, trinkets and weapons. To calculate probabilities, upgrades are based on "upgrade pity". This system is meant to limit the chances of losing and provide an adequate safety net when upgrading. Armor The item upgrader gives players with the possibility to upgrade the level of equipment of their armor, weapons and trinkets. The upgrades are applied to the gear by visiting an upgrader NPC with appropri