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World of Warcraft Item Upgrades Items that can be added to trinkets, weapons, and armor in order to boost their effectiveness are known as upgrades to the item. can find them in missions, vendors, and the Trading Post. Upgrades to gear can increase the effectiveness of your ship/character in battle. The gear that is upgraded increases Mark Level and rarity. Upgrade components Upgrade components are items that can be inserted into weapons, armor trinkets, trinkets, or gathering to