cosmoem
Pokémon #790 in the National PokéDex, a Psychic type legendary Pokémon.
It evolves from Cosmog and then into Solgaleo or Lunala, depending on which version it evolves in. It's the heaviest Pokémon in the franchise (tied with Celesteela), at 2204.4 lbs or 999.9 kg.
Japanese name: Cosmovum
Prior Pokémon: Cosmog
Next Pokémon: Solgaleo