>it evolves by trading>while helding an item>twice
dumb frogposter
>>28432213
>it evolves by trading with another specific Pokemon
>only describes one evolution line in the entire game
>helding
>>28432213
>both update install while Porygon is transferring
dumb frogposter
>>28432213
>only if female
>knowing a specific move
>while traded in a specific location
>at a specific time
>holding your 3DS upside down