Question: are the alola starters shiny locked?
Answer: In Pokémon Sun and Moon, Legendary Pokémon and Ultra Beasts are Shiny Locked, meaning their shiny forms are not available in-game, but the Starter Pokémon are. The Starter Pokémon are your first partners in Sun and Moon, and if you are patient enough, you can get the rare shiny form of either Rowlet, Litten or Popplio.