Question: is there a shiny charm in pokemon let's go?
Answer: After you complete your Pokedex by capturing all 150 Pokémon, including Mewtwo, the Game Director in Celadon City will give you the Shiny Charm, which increases the odds of encountering a Shiny from 1 in 4,096 to 1 in 1,365 — making the odds at least three times more likely.