Question: is ditto rare in pokemon let's go?
Answer: One of the more elusive Pokémon in Pokémon: Let's Go, Pikachu! and Eevee! is Ditto. It tends to be pretty rare, but there are a couple of places in the games where you can find some. ... Ditto can be found in any part of this cave, but only has a 5% spawn rate, so you'll probably have more luck at the Pokémon Mansion.