Guzzlord

Guzzlord is a Dark, Dragon-type Ultra Beast from the Alola region. It does not evolve into or from any other Pokémon. Its codename is UB-05 Glutton.

Trivia

 * Despite being a Dark/Dragon-type Pokémon in the main series, Guzzlord was initially listed as a Dark/Ghost-type in the Pokémon GO game files. This was fixed before Guzzlord was released.