Pokémon/Pokédex/Feebas

Generation 3
To get Feebas to evolve, you must raise its Beauty rating as high as it will go while keeping the other ratings as low as possible.

Later Generations
In later games the evolution method for Feebas changes.

TM/HM

 * RS/FL: Attract, Blizzard, Dive, Double Team, Facade, Frustration, Hail, Hidden Power, Ice Beam, Protect, Rain Dance, Rest, Return, Secret Power, Surf, Toxic, Water Pulse, Waterfall

Breeding

 * RS/FL: Confuse Ray, Dragonbreath, Hypnosis, Light Screen, Mirror Coat, Mud Sport

Trading Cards

 * EX Hidden Legends #61 - Feebas