Arceusism is a major religion practiced by a large percentage of the denizens in the Pokémon world. There are three types of Arceusism, Lanthrism which is believing that Arceus is the supreme being of all and each Pokémon should be worshiped, Orthism believing that only the Legendary Pokémon should be worshiped and Pseudoism believing that we are the descendants of Pokémon. Arceusist believe in Arceus as the chief deity and the ruler of Shór, the Pokémon World and Rafrié. There is approximately 2.4 billion people practising it.