My Little Pokemon Keldeo's Quest

It wasn't always peaceful in the Pokémon world. One Pokémon, a horse with a horn upon his head and a orange mane along his body, will soon become a hero.Who is this hero? Keldeo. Keldeo's dream is to be a member of the Swords of Justice but his quest is interrupted by the arrival of Kyurem, who captures the Swords of Justice and escapes into another world called Equestria.