Milotic is an elegant, sinuous Pokémon that resembles a sea serpent or oarfish. Its body is predominantly cream in color, while its fanlike tail comes in various shades (particularly of blue and magenta), that change upon the viewing angle. It has long red "hair" and curled red eyebrows that embellish its crimson eyes. Milotic is thought to be one of the most beautiful Pokémon in the world.
A shiny Milotic has blue hair and the tail is colored with a gold/yellow and a red color.
Males have shorter "hair" and eyebrows.
Milotic have the exclusive ability Marvel Scale. This allows Milotic's Defense to increase by 1.5x when Milotic has a status effect. Milotic also have the ability to calm rage and strife among people.
Milotic is the evolved form of Feebas. A Feebas will evolve into a Milotic when it has a very high Beauty stats and level up once during Generations III and IV or through trade while Feebas is holding a Prism Scale during Generation V.
Milotic share some similarities with Gyarados: both being powerful serpentine Water-types that evolve from weak fish Pokemon. However, while Milotic brings calm and peace Gyarados brings chaos and destruction.
Milotic is based on a sea serpent. Its appearance, particularly its row of small rounded gill openings, resembles a lamprey. The skin-like tone of its upper half, colorful scale-patterned lower half, and red hair-like appendages also bear a likeness to a mermaid or siren.