Pokemon Go Ditto Chart. Dont worry about it too much. Trading In Pokemon Go Trading only becomes available once both you and the friend you are trading with are at trainer level 10 which should be just about everyone at this point.
It could come in on a weakened Dragon in gyms to clean but honestly thats about it. 17 rows Pokémon GO uses the same type effectiveness chart as the main series however it uses different. You wont ever find it in the wild in its standard form.
Perhaps in the future there are updates that will add more Pokemon that can be used as disguises.
Content Update for January 2022. Mischievous Pokémon were causing more trouble than usual in the game and on Thursday April 1 2021 Pokémon prone to mischief were appearing more often in. 17 rows Pokémon GO uses the same type effectiveness chart as the main series however it uses different. However if Ditto tries to transform into something based on memory it may get.