this is a Steel/Dragon pokemon.
Dialga is a sauropod-like Pokémon. It's mainly dark blue with some gray metallic portions, such as its chestplate, which has a diamond in the center. It also has various light blue lines. It has a somewhat wing-like structure on its back, and a crest on its head, resembling a type of dinosaur. Dialga also has two horns on top of its head, two fang-like horns around its mouth, long claws, and a short tail.