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World of Warcraft Upgrades and Item Upgrading Upgrades can increase the value of weapons, armors and rings. They also boost extra bonuses, such as PvE damage and crit chance. If the weapon's upgrade template is in %, the weapon will be able to gain an additional 3% of the previous attack damage every time it is upgraded. The cost for upgrading items increases when they reach the item's current level. The cost increases as the level of the item increases. Components Upgrade components can be added to trinkets, weapons and armor in order to give them a boost in sta