Pokémon/Pokédex/Slowking

TM/HM

 * GS/C/RS/FL: Attract, Blizzard, Dig, Double Team, Earthquake, Fire Blast, Flash, Frustration, Hidden Power, Hyper Beam, Iron Tail, Protect, Psychic, Rain Dance, Rest, Return, Rock Smash, Shadow Ball, Strength, Sunny Day, Surf, Toxic
 * C/RS/FL: Flamethrower, Ice Beam
 * GS/C: Curse, Dream Eater, Dynamicpunch, Endure, Fury Cutter, Headbutt, Ice Punch, Icy Wind, Mud-Slap, Nightmare, Psych Up, Sleep Talk, Snore, Swagger, Swift, Whirlpool, Zap Cannon
 * RS/FL: Brick Break, Calm Mind, Dive, Facade, Focus Punch, Hail, Safeguard, Secret Power, Skill Swap, Water Pulse

Evolution

 * GS/C/RS/FL: Belly Drum, Future Sight, Safegaurd, Stomp
 * RS/FL: Mud Sport, Sleep Talk, Snore

Regional Variants

 * Standard Slowking
 * Galarian Slowking - Dual poison psychic type.

Trading Cards

 * Neo Genesis #14 - Slowking
 * Neo Destiny #20 - Dark Slowking
 * Aquapolis #H22 - Slowking
 * Aquapolis #34 - Slowking
 * EX Team Rocket Returns #9 - Dark Slowking