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World of Warcraft Item Upgrade and Set Bonuses The is a form of enchantment that increases the stats of specific weapons or armor. This includes tertiary stats such as Leech or Speed. A special evolution item which allows Porygon2 to evolve into Porygon2. It can be found at Pokestops and Gyms. Universal upgrades can be applied to any kind of equipment and offer lower bonuses than other compone