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World of Warcraft Item Upgrade The item upgrade was first introduced in Generation II. This special item allows Porygon to evolve into Porygon2 when traded while held. Slotting it into weapon gear, armour and trinkets can add a bonus or increase the value of an attribute. However, most upgrade items require the item to be at an appropriate level before it can be slotted. Recycle points Recycle points can be used to upgrade certain items. They can be earned by recycling cans and plastic, o