Multitype: This Pokémon's type and form change to match the type of Elemental Plate this Pokémon holds. The Plate cannot be effected by any item-removing ability or move.
Form Change (Arceus): Arceus' default type is Normal. It can change its type by holding an Elemental Plate. While holding this plate, the signature move, Judgment, also changes its type to match Arceus. These plates are: Draco (Dragon), Dread (Dark), Earth (Ground), Fist (Fighting), Flame (Fire), Icicle (Ice), Insect (Bug), Iron (Steel), Meadow (Grass), Mind (Psychic), Pixie (Fairy), Sky (Flying), Splash (Water), Spooky (Ghost), Stone (Rock), Toxic (Poison), and Zap (Electric).