I got it from professor oak, but I don't know what to do with it.
he said that if a pokemon holds it, it will evolve when traded. which pokemon is it?
Porygon holding Upgrade is evolved into Porygon 2 when traded.
Porygon 2 is evolved by Dubious Disc in same way
How to change your username
How to add a user avatar
Why was my post hidden?
Flags vs Downvotes
Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.