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World of Warcraft Item Upgrades Item upgrades are items that can be inserted into trinkets, weapons and armor to give an extra boost to your stats. They can be found through missions, vendors and also on the Trading Post. Upgrading gear is one of the main ways to increase your ship/characters effectiveness in battle. Gear that is upgraded increases in Mark Level and rarity. Upgrade components Upgrade components are items that can be added to armors, weapons trinkets, tools for gathering and weapons