With the introduction of Generation IV, another evolution was added to the line – Porygon-Z. This final evolution, brought on by trading a Porygon2 holding a Dubious Disc, results in a Pokémon ...

Even if Game Freak comes short of giving Porygon a “correct” region-specific final evolution with Porygon3, simply including the Pokemon line or gifting a Porygon to players would be an ...