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World of Warcraft Upgrades and Item Upgrading Upgrades can increase the value of armors, weapons and rings. They also boost extra bonuses like damage from PvE and crit chance. For example a weapon that has the upgrade template that is ending in % will take on an attack damage of 3% each time it is upgraded (relative to its previous value). The cost of upgrading an item is determined by the item's level. The cost increases as the level of the item rises. Components Upgrade components can be incorporated into weapons, armor and trinkets to give them a