Question: how rare is it to get ditto in pokemon go?
Answer: The chances of them being a Ditto appear to be very slim - the exact stats on its rarity are unclear currently - so it's a case of catching as many Pokémon as you can until one appears. When you have it, it'll slot into your Pokémon Bag like any other, and can be given Candy to upgrade, and taken into Gyms for battle.