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.
Gaseous and completely impalpable. Also highly dangerous— inhaling part of its poisonous body will cause one to faint instantly.
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 |
In Legends: Arceus, Weavile can KO Gastly with Knock Off (246-290%). Landorus threatens a KO with Psychic (259-305%).
 Weavile DarkIce | A | |
Recommended Build AbilityPressure ItemHeavy-Duty Boots NatureJolly Moves
Damage vs Gastly View Weavile builds →Knock Off 2x246-290%KO Ice Shard76-90% | ||
 Landorus Ground | B | |
Recommended Build AbilitySheerforce ItemLife Orb NatureTimid Moves
Damage vs Gastly View Landorus builds →Sludge Bomb32-38% Psychic 2x259-305%KO | ||
Legends: Arceus 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: Arceus Gastly Best Moveset
Best Build
Legends: Arceus uses different battle mechanics.
Competitive build content is not applicable for this game. Select a main series game for builds.
Moves
The offense anchors on Sludge Bomb and Shadow Ball, with coverage across 7 types adding reach. It's a workable movepool for Gastly that handles most situations. Energy Ball and Psychic give it enough punch where it matters.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Legends: Arceus Gastly Locations
A handful of locations for Gastly with decent spawn rates across mid-game routes. The sort toggle below swaps between best odds and earliest access, so you can approach it based on where you are in the game.
Best Locations to Catch Gastly in Legends: Arceus
You can find Gastly through 7 walking encounters at walking. The list is sorted by game progression, so the earliest accessible spots show up first.
Gastly Guide
Gastly evolves into Haunter at level 25. Takes some grinding. Plan your team around the mid-game wait.
In Legends: Arceus, 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: Arceus. 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