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World of Warcraft - Item Upgrading The ability to upgrade items allows players to boost the level of their armor, weapons and trinkets. Most upgrades boost numeric stats while others can have special effects. The upgrades to items are essential to the Path of Exile progression. They increase the damage of ships and gear as well as combat effectiveness. Items that don't change in requirements (like Eth Titans), will have a lower value in trade. Recycled Items Most items made of metal, paper, or glass ca