Dratini is a Dragon-type Pokémon. Dratini has the ability Shed Skin and the hidden ability Marvel Scale. You should be able to find it by fishing in the Grove of Dreams but it is very rare. It evolves into Dragonair starting at level 30, which evolves into Dragonite starting at level 55.
Dratini is a serpentine Pokémon with a blue body and a white underside. It has white, three-pronged fins on the sides of its head and a white bump on its forehead. Above its large, round, white snout are oval, with magenta or maroon eyes. You can find him at the grove of dreams by fishing at the water tree.