Arceus is a Legendary Pokémon introduced in Generation IV of the Pokémon series. Known as the "Original One," it is said to have created the Pokémon universe and is associated with the creation of Dialga, Palkia, and Giratina. Arceus is a Normal-type Pokémon, but it can change its type by using special items called plates. Arceus has a unique design, resembling a white, horse-like creature with a golden halo and a ring of plates around its body. It has the ability Multitype, allowing it to adapt to different battle situations. In the Pokémon games, Arceus is often portrayed as a deity figure, representing the concept of creation and balance in the Pokémon world.