Effect
Traded on a Porygon: Holder evolves into Porygon2.
Held by Porygon: Evolves the holder into Porygon2 when traded.
Wild holders
Pokémon that may carry this item in the wild.
Porygon2
Generations
Generation IIGeneration IIIGeneration IVGeneration VGeneration VIGeneration VIIGeneration VIIIGeneration IX