Porygon evolves from the upgrade.
it evolves porygon to porygon2 when traded.
give it to a porygon and trade it to another person and it evolves into a porygon2
It evolves Porygon to Porygon2 through trade.Dubious disc will then change Porygon2 to PorygonZ
Poliwhirl turns into PoliwrathShellder evolves into CloysterStaryu evolves into StarmieEvee evolves into VaporeonLombre evolves into Ludicolo
You can give the Upgrade to Porygon and then trade it to a friend to make Porygon evolve into Porygon2, in order to evolve Porygon2 then give a Dubious Disc to Porygon2 and then trade it to someone and it'll evolve into a Porygon-Z.
im pretty sure that porygon 2, given the upgrade and traded evolves in porygon Z
There is no certain level, porygon evolves when it is traded and is holding upgrade.
it evolves porygon to porygon2 when traded.
No level. It evolves by trade with an upgrade.
Upgrade,which is an item,is an item that when held by a Porygon and is trade the porygon evolves to porygon 2
give it to a porygon and trade it to another person and it evolves into a porygon2
you make a porygon hold it and then when you trade it it evolves into porygon2
It evolves Porygon to Porygon2 through trade.Dubious disc will then change Porygon2 to PorygonZ
porygon evolves by trading it with a upgrade then trade with dubios disk. enjoy your porygonZ!
Porygon evolves while being traded while holding an Upgrade.
Give porygon an upgrade and trade it it evolve it. And of course you have to trade it back. Try this in Pokémon go!
porygon 2 evolves to porygon z i think, I'm not sure