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World of Warcraft Upgrades Upgrades are the components that can be added to equipment in order to provide different bonus effects. They can range from stat boosts to increased proc chances of amazing effects on the equipment. The item upgrade system works differently than you might be used to from other MMORPGs. This guide will go over the basics of how it works as well as some tips and tricks. Rerolling By visiting an item upgrader an item upgrader, players can upgrade items like trinkets, weapons, and armor that are above the level 9. These NPCs are accessible