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