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World of Warcraft - Item Upgrading The ability to upgrade items allows players to raise the level of their weapons, armor and trinkets. The majority of upgrades increase numeric stats, while others have special effects. The item upgrades are essential to the Path of Exile progression. They boost the damage of equipment/ships and combat effectiveness. Typically items that don't vary in requirements after upgrading (like Eth Titans) will see a slightly lower trade value than non-upgraded versions. Re