Pokémon - Arceus
Registered as entry #493, the Alpha Pokémon Arceus is a Mythical Pokémon sometimes called "The Original One" as it is said that Arceus possibly shaped the universe with its 1,000 arms. Its true form is said to be so incomprehensible that the form we know it as is a mere fragment of its power.
It casts powerful Judgement on its foes and can change its type with Plates. It resides in a separate realm, the Hall of Origin, which can only be accessed from the Spear Pillar in Sinnoh/Hisui.