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.
It wraps its opponent in its gas-like body, slowly weakening its prey by poisoning it through the skin.
Its body is made of gas. Despite lacking substance, it can envelop an opponent of any size and cause suffocation.
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. The Ghost/Poison typing picks up 4 resistances to work with. 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, Fairy |
| 0.25x (Resist) | Poison, Bug |
| 0x (Immune) | Normal, Fighting |
Espeon Psychic | A | |
Psychic is super effective against GastlyView Espeon → | ||
Annihilape FightingGhost | A | |
Ghost is super effective against GastlyView Annihilape → | ||
Krookodile GroundDark | A | |
Ground is super effective against GastlyView Krookodile → | ||
In Legends: Z-A, Espeon can KO Gastly with Psyshock (290-342%). Krookodile's Earthquake also KOs at 414-488%.
Espeon Psychic | A | |
Recommended Build AbilityMagic Bounce ItemLeftovers NatureTimid Moves
Damage vs Gastly View Espeon builds →Psyshock 2x290-342%KO | ||
Annihilape FightingGhost | A | |
Recommended Build AbilityDefiant ItemSitrus Berry NatureJolly Moves View Annihilape builds →
| ||
Krookodile GroundDark | A | |
Recommended Build AbilityMoxie ItemChoice Scarf NatureJolly Moves
Damage vs Gastly View Krookodile builds →Earthquake 2x414-488%KO Knock Off 2x270-318%KO | ||
Legends: Z-A 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
Legends: Z-A Gastly Best Moveset
Focus Sash guarantees Gastly survives one hit from full HP. That's enough to deal early damage and fire off Destinybond before going down. Levitate and max Attack and Speed EVs maximize first-turn impact.
Best Build
Gastly best EVs are Attack and Speed
Physical Attacker Moveset
- Destiny Bond
- Clear Smog
- Unknown
- Dark Pulse
Recommended Teammates
Special Revenge Killer Moveset
- Shadow Ball
- Dazzling Gleam
- Trick
- Sludge Bomb
Recommended Teammates
Special Sweeper Moveset
- Sludge Wave
- Destiny Bond
- Shadow Ball
- Thunder
Moves
Most of Gastly's flexibility comes from TMs. Same-type output runs through Gunk Shot and Sludge Bomb, but Psychic and Ice and the rest of the TM pool push it from predictable to genuinely threatening.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Gastly in Legends: Z-A
Gastly Guide
Gastly evolves into Haunter at level 25. Takes some grinding. Plan your team around the mid-game wait.
In Legends: Z-A, 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 Legends: Z-A. 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
