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World of Warcraft Upgrades and Item Upgrading Upgrades can increase the value of armors, weapons and rings. Upgrades can also boost bonuses like crit chance and PvE Damage. If the template for upgrading a weapon ends in %, it will gain an additional 3% of the previous damage every time it's upgraded. The cost of upgrading an item is determined by the item's level. The cost increases as the item level rises. Components Upgrade components are items that can be put into weapons, armor, a