Keldeo is a Water/Fighting-type Generation V Mythical Pokémon. Keldeo used to live in a forest that burned down in a terrible fire. Cobalion, Terrakion, and Virizion found Keldeo and took it in as their own, making it the fourth, but secret member of the Musketeer Trio. It resembles d'Artagnan in the novel The Three Musketeers by Alexandre Dumas. It has a signature move that is called Secret Sword. Keldeo resembles a foal or small unicorn referring to the horn on its head. It is mainly pale in color with light blue fur covering its neck and the back of its head. Its tail is also light blue in color. It has long, dark blue eyebrows and a red mane. On the ends of its legs are dark blue hooves.