Stats & Training
Nothing fancy in Gastly's spread. It leans special with Sp. Atk out front. And you'll get 1 Sp. Atk EV per KO for it. Follows a 1.06M XP medium-slow curve.
When exposed to a strong wind, a GASTLY’s gaseous body quickly dwindles away. They cluster under the eaves of houses to escape the ravages of wind.
Gastly Weakness
Gastly is weak to Ground, Psychic, Ghost, and Dark. On the flip side, it's immune to Normal and Fighting-type moves entirely. Levitate grants an additional Ground immunity, reshaping the matchup chart. Gastly leans toward special offense (base 100 Sp.Atk) instead of trying to wall anything.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic, Ghost, Dark |
| 0.5x (Resist) | Grass |
| 0.25x (Resist) | Poison, Bug |
| 0x (Immune) | Normal, Fighting |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
In Emerald, Starmie can KO Gastly with Surf (136-160%). Claydol threatens a KO with Earthquake (283-333%). Houndoom's Crunch also KOs at 259-304%.
 Starmie WaterPsychic | A | |
Recommended Build AbilityNatural Cure ItemLeftovers NatureTimid Moves
Damage vs Gastly View Starmie builds →Ice Beam91-107%KO Thunderbolt91-107%KO Surf136-160%KO | ||
 Claydol GroundPsychic | A | |
Recommended Build AbilityLevitate ItemLeftovers NatureAdamant Moves
Damage vs Gastly View Claydol builds →Earthquake 2x283-333%KO Psychic 2x151-178%KO | ||
 Houndoom DarkFire | B | |
Recommended Build AbilityFlashfire ItemLeftovers NatureTimid Moves
Damage vs Gastly View Houndoom builds →Pursuit 2x130-154%KO Fire Blast178-209%KO Crunch 2x259-304%KO | ||
 Dusclops Ghost | B | |
Recommended Build AbilityPressure ItemLeftovers NatureCalm Moves
Damage vs Gastly View Dusclops builds →Shadow Ball 2x142-167%KO | ||
Emerald Evolution
Gastly kicks off a three-stage evolution line through Haunter all the way to Gengar. For breeding, average hatch time with a decent partner pool via one egg group. Evolving adds up to 190 stat points total. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Gastly easily with 22 breeding partners from the Indeterminate egg group. Pass egg moves like Astonish, Explosion, Grudge and 4 more to offspring.
Emerald Gastly Best Moveset
Best Build
No build content available for this Pokemon in Gen 3.
Try selecting a different game/generation filter, or check back later.
Moves
Egg moves make a real difference. Gastly gets Astonish and Explosion exclusively through breeding, filling gaps that TMs and level-up can't touch. Psychic and Normal coverage and more rounds out the picture alongside Sludge Bomb and Shadow Ball.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Gastly in Emerald
No wild encounters for Gastly in Emerald. It's available in Red, Yellow, or FireRed and can be transferred over. The details below show where to find it.
Gastly is not available as a wild encounter in this game.
Catch in the wild in:
Then trade to Emerald.
Also found in:
Gastly Guide
Gastly evolves into Haunter at level 25. Takes some grinding. Plan your team around the mid-game wait.
In Emerald, For a casual playthrough, Gastly works as a placeholder. Ghost/Poison coverage is useful early. The real payoff is Haunter. That's where the stats start mattering.
Gastly is catchable in Emerald. Check the Locations section above for specific routes, encounter rates, and methods. It also appears in 21 other games across the series.
Game Availability
Present since Red & Blue, Gastly appears in 22 games spanning 10 generations. Gen 1 originals like Gastly have the longest track record of availability in the series.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RBDebut
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SM
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves