Pokémon/Pokédex/Cleffa

How to Evolve
Cleffa evolves through friendship.

TM/HM

 * GS/C/RS/FL: Attract, Double Team, Fire Blast, Flash, Frustration, Hidden Power, Iron Tail, Protect, Psychic, Rain Dance, Rest, Return, Shadow Ball, Solarbeam, Sunny Day, Toxic
 * C/RS/FL: Flamethrower
 * GS/C: Curse, Defense Curl, Detect, Dream Eater, Endure, Headbutt, Icy Wind, Mud-Slap, Nightmare, Psych Up, Rollout, Sleep Talk, Snore, Swagger, Zap Cannon
 * RS/FL: Dig, Facade, Light Screen, Reflect, Safeguard, Secret Power, Shock Wave, Water Pulse

Breeding

 * GS/C/RS/FL: Amnesia, Belly Drum, Metronome, Mimic, Present, Splash
 * RS/FL: Substitute, Wish

Other Sources

 * Pokémon Stadium 2: Dizzy Punch

Trading Cards

 * Neo Genesis #20 - Cleffa
 * Skyridge #48 - Cleffa