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World of Warcraft Item Upgrade The upgrade to the item was first introduced in Generation II. This item is a special one that allows Porygon to transform into Porygon2 while being traded or being held. Slotting it into armour, weapon gear and trinkets could provide an additional benefit or increase the value of an attribute. However, most upgrade components require the item to be at a certain level before it can be slotted in. Recycle points Recycle points can be used to upgrade certain item