Milotic is the tender Pokémon creature. In some Pokémon games and the TV show, Gym LeaderJuan has a Milotic, Queen Lucy has Milotic and Robert also has a Milotic.
Coming in possession of a Milotic can be challenging, as they are not available in the wild and the only way to get one is to evolve Feebas or trade with a friend. It's unique because the only way Feebas will evolve into a Milotic is to raise its beauty stats to reach maximum, and doing this is impossible in some of the games it appears in such as Pokémon FireRed and LeafGreen and several of the console titles. In Pokémon Ruby and Sapphire, this could be done via a PokéBlock and in Pokémon Diamond and Pearl it could be done by feeding one poffins. It's much easier in Pokémon HeartGold and SoulSilver, because after acquiring a Feebas in the game and taking it to Daisy Oak to get a massage, it can reach its max beauty.