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The Importance of Upgrades in World of Warcraft Upgrades are a different kind of item that can provide an increase to your stats. These can be used to upgrade trinkets, armor and weapons. Item upgrades use a system called "upgrade pity" to determine probabilities. This system is designed to limit the chances of losing and provide an adequate safety net when upgrading. Armor The item upgrader allows players to improve the level of equipment on their armor, trinkets and weapons. The upgrade i