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World of Warcraft Upgrades Upgrades are the components that can be added to equipment in order to provide various bonuses. They range from stat increases to increased chances of amazing equip effects. The item upgrade system is a bit different than the system you're used to in other MMORPGs. This guide will cover the fundamentals of how it works as well as some tricks and tips. Rerolling When visiting an upgrader for items, a player can upgrade items such as trinkets, weap