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The Pokemon Upgrade Item - A Special Evolution Item That Helps Trainers Evolve Certain Pokemon Into More Powerful Forms The upgrade item is an evolution item that allows trainers to evolve certain Pokemon in more powerful forms. Silph Co. produces it. This special item is extremely rare however, players can get it by spinning Photo Discs at PokeStops and Gyms. It provides a set of extra benefits, but it also has an upgrade track that limits the extent to which an i