Pokémon/Pokédex/Haunter

Type Matching
Move types which are good on Haunter: Dark&sup2;, Ghost, Psychic Move types which are bad on Haunter: Fighting$${}^4$$, Grass Move types which are very bad on Haunter: Bug&sup2;, Poison Move types which don't effect Haunter:&sup3; Fighting, Normal

Ground-type moves don't affect Haunter due to Levitate.

All other move types are normal effectiveness on Haunter.

&sup3; - This immunity can be eliminated if the attacking Pokemon uses Foresight on Haunter; switching either Pokemon ends this effect (Not in Red/Blue/Yellow).

$${}^4$$ - If the immunity was removed by Foresight (Not available in Red/Blue/Yellow).

How to Evolve
Haunter evolves by being traded.

TM/HM

 * RB/Y/GS/C/RS/FL: Double Team, Psychic, Rest, Toxic
 * RB/Y/C/RS/FL: Thunderbolt
 * RB/Y/GS/C: Dream Eater, Thunder
 * GS/C/RS/FL: Attract, Frustration, Giga Drain, Hidden Power, Protect, Rain Dance, Return, Shadow Ball, Sunny Day, Thief
 * RB/Y: Bide, Explosion, Mega Drain, Mimic, Psywave, Rage, Selfdestruct, Substitute
 * GS/C: Curse, Endure, Nightmare, Psych Up, Sleep Talk, Snore, Swagger, Zap Cannon
 * RS/FL: Facade, Secret Power, Skill Swap, Sludge Bomb, Snatch, Taunt, Torment

Evolution

 * GS/C/RS/FL: Haze, Perish Song, Psywave
 * RS/FL: Astonish, Explosion, Grudge, Will-O-Wisp

Trading Cards

 * Base Set #29 - Haunter
 * Fossil #6 - Haunter
 * Fossil #21 - Haunter
 * Gym Heroes #58 - Sabrina's Haunter
 * Gym Challenge #55 - Sabrina's Haunter
 * Neo Destiny #36 - Dark Haunter
 * Expedition #80 - Haunter
 * Skyridge #63 - Haunter
 * EX FireRed & LeafGreen #34 - Haunter