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The Importance of Upgrades in World of Warcraft Upgrades are new items that boost your stats. You can upgrade your armor weapons, trinkets and weapons with these. Upgrades to items use a system called "upgrade pity" to calculate probabilities. This system is meant to lower chances of losing and provide an adequate safety net when upgrading. Armor The item upgrader allows players with the ability to upgrade the levels of their weapons, armor and trinkets. The upgrades are applied to the equipment by visiting an item upg