Legendary Pokémon
Cosmog (コスモッグ Causesmog) is a Psychic-Type Pokémon known as the Nebula Pokémon. Cosmog is a small Pokémon with a gaseous body similar to a nebula. It evolves into Cosmoem starting at level 43, which evolves into either Solgaleo or Lunala  starting at level 53 depending on the game it evolves in.