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World of Warcraft Item Upgrades Item upgrades are items that can be put into trinkets, weapons and armor to give an extra boost to your stats. They are available through missions and vendors, as well as the Trading Post. Upgrading gear is one of the primary ways to improve your ship/characters effectiveness in battle. Upgrading equipment increases its Mark Level and Rarity. Upgrade components Upgrade components are items which can be added to armors, weapons trinkets, tools for gathering and weapons in order