Arceus is a Mythical Pokémon known as the Original One and the creator of the Pokémon universe, the lake guardians, and all mythical Pokémon. Worshipped as a deity by ancient Sinnoh people under the name almighty Sinnoh, Arceus is an extraordinarily powerful being with the ability to change its type using Plates and summon legendary Pokémon. It possesses an androgynous, equine appearance resembling a qilin or centaur. Once living in harmony with humans, Arceus was betrayed when humanity stole its power to create the Plates, leading it to distrust mankind. However, it continues to hope for redemption through witnessing genuine bonds between humans and Pokémon. In modern times, Arceus watches over the world and provides guidance rather than direct interference, occasionally blessing Pokémon to make them stronger. It can communicate through human speech and even transformed a smartphone into an Arc Phone to communicate with humans.