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World of Warcraft Upgrades Upgrades are components which can be added to equipment to provide it with various bonuses. They can range from stat boosts to increased proc odds of incredible effects on equipment. The item upgrade system is a bit different than the one you are familiar with in other MMORPGs. This guide will go over the basics and provide some tricks and tips. Rerolling A player can upgrade items such as weapons, armor and trinkets up to level 9 by visiting an upgrader NPC. These NPCs can be loca