Pokémon/Pokédex/Donphan

TM/HM

 * GS/C/RS/FL: Attract, Double Team, Earthquake, Frustration, Hidden Power, Hyper Beam, Protect, Rest, Return, Roar, Rock Smash, Sandstorm, Strength, Sunny Day, Toxic
 * GS/C: Curse, Defense Curl, Endure, Headbutt, Mud-Slap, Rollout, Sleep Talk, Snore, Swagger
 * RS/FL: Facade, Iron Tail, Rock Tomb, Secret Power

Evolution

 * GS/C/RS/FL: Ancientpower, Body Slam, Focus Energy
 * RS/FL: Counter, Fissure, Snore
 * C: Water Gun

Trading Cards

 * Neo Genesis #21 - Donphan
 * Neo Destiny #3 - Dark Donphan
 * Aquapolis #7 - Donphan
 * EX Ruby & Sapphire #17 - Donphan
 * EX Deoxys #30 - Donphan