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World of Warcraft Item Upgrade The upgrade of the item was first introduced in Generation II. This special item allows Porygon to transform into Porygon2 if traded while held. It can be slotted into weapon gear, armor and trinkets in order to provide an additional bonus effect or increase its attribute value. However, the majority of upgrade components require the item to be at an appropriate level before it can be slotted. Recycle points Recycle points can be