At what levels should I evolve a Porygon into Porygon2, and Porygon2 into Porygon-Z? I'm trying to breed and raise another Porygon to use on one of my games because it was technically cheated (bred from a cheat in this case), and also because I didn't evolve it into Porygon2, and then Porygon-Z until about level 82 because of the daycare.