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World of Warcraft Upgrades and Item Upgrading Upgrades can boost the value of weapons, armors and rings. Upgrades also boost bonuses like crit chance and PvE Damage. For example a weapon that has the upgrade template ending in % will suffer 3damage to attack each time it is upgraded (relative to its previous value). Item upgrading costs crests and the item's current level. The cost increases with item's level. Components Upgra