The complete Pokemon Diamond and Pearl pokedex, part 9

Pokémon Name: Porygon-Z
Type: Normal
Classification: Virtual
Pokédex Number: 474 National
Ability: Download – Boosts Porygon-Z's stats, depending on the foe's highest stat; Adaptability – Raises the power of moves the same type as Porygon-Z currently is
Dream World ability: Analytic – If user's move hits second it will be more powerful
Useful Attacks: Zap Cannon
Location Found:
D/P/P/HG/SS: Evolved from Porygon2 via trading while holding Dubious Disc
Black: Trade, Poke Transfer
White: Evolve Porygon2

The original Porygon, introduced in the first generation of Pokémon games, is mildly infamous. Pokémon garnered international headlines when the cartoon episode “Electric Soldier Porygon” gave entranced children across Japan seizures, thanks to a flashing blue and red background. When traded with an Upgrade, Porygon evolved into Porygon2, and now a new Dubious Disc evolves it yet again. Like previous incarnations, Porygon-Z's binary DNA allows it to react to its situation and change types on the fly, making it a flexible and powerful Pokémon in the right hands.