Mid-stage Pokemon like Haunter rarely see competitive play outside of special formats. It's a waypoint on the road to Gengar, which is where the real potential kicks in. Normal and Fighting moves can't touch it, which offsets the 4 weaknesses somewhat. Known as the Gas Pokemon.
Haunter's built around special offense. Sp. Atk leads the charge, HP pays for it. Moderately hard to find, worth 2 Sp. Atk EVs. Follows a 1.06M XP medium-slow curve.
By licking, it saps the victim’s life. It causes shaking that won’t stop until the victim’s demise.
Haunter Weakness
GoodGround, Psychic, Ghost, and Dark-type moves hit Haunter for super-effective damage. The upside? Normal and Fighting-type moves can't touch it at all. It resists 4 types, giving it decent defensive coverage. Levitate grants an additional Ground immunity, reshaping the matchup chart. Haunter leans toward special offense (base 115 Sp.Atk) instead of trying to wall anything.
Haunter is partway through a three-stage line between Gastly and Gengar. The chain involves a trade, so it's not a straightforward grind. So far, Sp.Def got the biggest boost (+20 from Gastly). The final form adds another 95 stats on top.
How to Evolve
Breed with Haunter to get Gastly eggs easily from the Indeterminate egg group.
Don't let the NFE status fool you. Haunter with Eviolite hits bulk numbers that compete with final forms. Max Sp. Atk and Speed EVs and Timid nature maximize that, and Levitate handles the rest.
Best Build
Let's Go Pikachu & Eevee uses different battle mechanics.
Competitive build content is not applicable for this game. Select a main series game for builds.
Haunter develops a solid moveset just through leveling. Dream Eater and Foul Play show up naturally, and the progression handles both STAB and utility without leaning on TMs for the core attacks.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
decent spawn rates across 8 locations for Haunter in mid-game routes. Scroll the sorted list below and pick whichever spot sits closest to your current route. The rate differences between locations are worth comparing.
Where To Catch Haunter in Let's Go Pikachu & Eevee
The path to Haunter starts with Gastly at Lv. 27-32 via walking encounters. 2 catchable stages total, with locations listed for each one below.
Step 1Catch GastlyEFFORTLESSPokémon Tower - 1FLet's Go EeveeGrassLv.27-3275%MidBuildingEFFORTLESSPokémon Tower - 1FLet's Go PikachuGrassLv.27-3275%MidBuildingEFFORTLESSPokémon Tower - 2FLet's Go EeveeGrassLv.27-3275%MidBuildingEFFORTLESSPokémon Tower - 2FLet's Go PikachuGrassLv.27-3275%MidBuildingEFFORTLESSPokémon Tower - 3FLet's Go PikachuGrassLv.27-3270%MidBuildingEFFORTLESSPokémon Tower - 3FLet's Go EeveeGrassLv.27-3270%MidBuildingEFFORTLESSPokémon Tower - 4FLet's Go PikachuGrassLv.27-3260%MidBuildingEFFORTLESSPokémon Tower - 4FLet's Go EeveeGrassLv.27-3260%MidBuilding
Step 2Haunter ✓EASYPokémon Tower - 4FLet's Go PikachuGrassLv.27-3220%MidBuildingEASYPokémon Tower - 4FLet's Go EeveeGrassLv.27-3220%MidBuildingMODERATEPokémon Tower - 3FLet's Go PikachuGrassLv.27-3210%MidBuildingMODERATEPokémon Tower - 3FLet's Go EeveeGrassLv.27-3210%MidBuildingCHALLENGINGPokémon Tower - 1FLet's Go EeveeGrassLv.27-325%MidBuildingCHALLENGINGPokémon Tower - 1FLet's Go PikachuGrassLv.27-325%MidBuildingCHALLENGINGPokémon Tower - 2FLet's Go EeveeGrassLv.27-325%MidBuildingCHALLENGINGPokémon Tower - 2FLet's Go PikachuGrassLv.27-325%MidBuildingor evolve from Gastly (Step 1)
Haunter isn't fully evolved, so it's not built for competitive play. You'll want to evolve it into Gengar to unlock its full potential. At 405 BST, it's a stepping stone rather than a team anchor.
Watch for Rhydon (Ground), Alakazam (Psychic), and Misdreavus (Ghost) when using Haunter. They all hit it super-effectively with STAB. Dark-type attackers are also a problem.
Run Levitate on Haunter. It's the ability that defines how you build around it and the main reason it holds a competitive niche.
Haunter fills the cannon role. It's leaning toward the special side (base 115 Sp. Atk). Base 95 Speed is workable — faster than some, slower than many. And it's fragile — can't afford to take many hits.
Haunter appears in 22 games, including Yellow, Red & Blue, and Gold & Silver.
Haunter has been part of the series since Red & Blue, appearing in 22 titles across all 9 generations. As a Gen 1 original, it's one of the most consistently available Pokemon in the franchise.
- Gen IY
Yellow - Gen IRBDebut

Red & Blue - Gen IIGS

Gold & Silver - Gen IIC
Crystal - Gen IIIRS

Ruby & Sapphire - Gen IIIFRLG

FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS

HeartGold & SoulSilver - Gen IVDP

Diamond & Pearl - Gen VBW

Black & White - Gen VB2W2

Black 2 & White 2 - Gen VIXY

X & Y - Gen VIORAS

Omega Ruby & Alpha Sapphire - Gen VIIUSUM

Ultra Sun & Ultra Moon - Gen VIISM

Sun & Moon - Gen VIILGPE

Let's Go Pikachu & Eevee - Gen VIIISwSh

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A