Stats & Training
Everything pushes toward special damage here. Gastly's Special does the work, HP pays the price. But you're still getting 1 Special stat exp per KO. Common in the wild, on a 1.06M XP medium-slow curve.
Almost invisible, this gaseous POKéMON cloaks the target and puts it to sleep without notice.
Almost invisible, this gaseous POKéMON cloaks the target and puts it to sleep without notice.
Gastly Weakness
Gastly is weak to Ground, Psychic, and Ghost. On the flip side, it's immune to Normal and Fighting-type moves entirely. Gastly's special bulk (base 100 Special) helps absorb special-type weaknesses, though physical moves exploit the lower Defense.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic, Ghost |
| 0.5x (Resist) | Grass |
| 0.25x (Resist) | Poison |
| 0x (Immune) | Normal, Fighting |
- Only 15 types exist — Dark, Steel, and Fairy are absent
- Ghost has no effect on Psychic (a known bug, fixed in Gen II)
- Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
 Rhydon GroundRock | S | |
Available Moves Moves
Damage vs Gastly View Rhydon builds →Earthquake 2x325-383%KO Dig 2x259-306%KO | ||
 Dugtrio Ground | C | |
Available Moves Moves
Damage vs Gastly View Dugtrio builds →Earthquake 2x259-306%KO Dig 2x209-246%KO | ||
 Sandslash Ground | C | |
Available Moves Moves
Damage vs Gastly View Sandslash builds →Earthquake 2x259-306%KO Dig 2x209-246%KO | ||
 Marowak Ground | C | |
Available Moves Moves
Damage vs Gastly View Marowak builds →Earthquake 2x218-257%KO Dig 2x174-206%KO Bone Club 2x143-169%KO Bonemerang 2x111-131%KO | ||
 Graveler RockGround | C | |
Available Moves Moves
Damage vs Gastly View Graveler builds →Earthquake 2x250-294%KO Dig 2x199-234%KO | ||
Dugtrio Ground | C | |
Available Moves Moves
Damage vs Gastly View Dugtrio builds →Earthquake 2x243-287%KO Dig 2x196-230%KO | ||
 Onix RockGround | C | |
Available Moves Moves
Damage vs Gastly View Onix builds →Earthquake 2x136-161%KO Dig 2x110-130%KO | ||
 Sandshrew Ground | C | |
Available Moves Moves
Damage vs Gastly View Sandshrew builds →Earthquake 2x196-230%KO Dig 2x158-187%KO | ||
 Geodude RockGround | C | |
Available Moves Moves
Damage vs Gastly View Geodude builds →Earthquake 2x206-243%KO Dig 2x165-196%KO | ||
 Cubone Ground | D | |
Available Moves Moves
Damage vs Gastly View Cubone builds →Earthquake 2x148-174%KO Dig 2x117-139%KO Bone Club 2x96-113%KO | ||
Dugtrio Ground | C | |
Available Moves Moves
Damage vs Gastly View Dugtrio builds →Earthquake 2x248-292%KO Dig 2x199-234%KO | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Gastly View Onix builds →Earthquake 2x136-160%KO Dig 2x111-132%KO | ||
 Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Gastly View Rhyhorn builds →Earthquake 2x216-255%KO Dig 2x174-205%KO | ||
Sandshrew Ground | C | |
Available Moves Moves
Damage vs Gastly View Sandshrew builds →Earthquake 2x195-230%KO Dig 2x156-185%KO | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Gastly View Cubone builds →Earthquake 2x149-177%KO Dig 2x118-140%KO Bone Club 2x97-115%KO | ||
Dugtrio Ground | C | |
Available Moves Moves
Damage vs Gastly View Dugtrio builds →Earthquake 2x252-297%KO Dig 2x200-236%KO | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Gastly View Onix builds →Earthquake 2x136-161%KO Dig 2x110-130%KO | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Gastly View Rhyhorn builds →Earthquake 2x221-261%KO Dig 2x177-209%KO | ||
Sandshrew Ground | C | |
Available Moves Moves
Damage vs Gastly View Sandshrew builds →Earthquake 2x200-236%KO Dig 2x162-191%KO | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Gastly View Cubone builds →Earthquake 2x148-176%KO Dig 2x118-139%KO Bone Club 2x97-115%KO Bonemerang 2x77-91% | ||
Sandslash Ground | C | |
Available Moves Moves
Damage vs Gastly View Sandslash builds →Earthquake 2x259-306%KO Dig 2x209-246%KO | ||
Dugtrio Ground | C | |
Available Moves Moves
Damage vs Gastly View Dugtrio builds →Earthquake 2x259-306%KO Dig 2x209-246%KO | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Gastly View Marowak builds →Earthquake 2x218-257%KO Dig 2x174-206%KO Bone Club 2x143-169%KO Bonemerang 2x111-131%KO | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Gastly View Graveler builds →Earthquake 2x250-294%KO Dig 2x199-234%KO | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Gastly View Onix builds →Earthquake 2x143-169%KO Dig 2x113-134%KO | ||
In Red & Blue, Slowbro's Surf hits Gastly for 49-57%. Golem threatens a KO with Earthquake (308-363%). Haunter deals 36-43% with Thunderbolt.
 Slowbro WaterPsychic | B | |
Recommended Build Moves
Damage vs Gastly View Slowbro builds →Surf49-57% | ||
 Golem RockGround | B | |
Recommended Build Moves
Damage vs Gastly View Golem builds →Earthquake 2x308-363%KO Rock Slide116-136%KO | ||
 Haunter GhostPoison | C | |
Recommended Build Moves
Damage vs Gastly View Haunter builds →Thunderbolt36-43% | ||
Red & Blue Evolution
Gastly evolves into Gengar, but can't breed. At 375 stats as a Ghost/Poison type, evolution is the only path. Evolving adds up to 125 stat points total. View every chain in the Evolution Chart.
How to Evolve
Red & Blue Gastly Best Moveset
Best Build
Support Moveset
- Explosion
- Hypnosis
- Substitute
- Thunderbolt
Recommended Teammates
Moves
Most of Gastly's flexibility comes from TMs. Same-type output runs through Lick and Night Shade, but Psychic and Normal and the rest of the TM pool push it from predictable to genuinely threatening.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Red & Blue Gastly Locations
high spawn rates in mid-game routes across 10 locations. Gastly's one of the easier catches on the list. Knock it out fast and save your time for harder targets.
Best Locations to Catch Gastly in Red & Blue
10 spots to find Gastly at Lv. 18-24 via walking. Not all of them exist in both Blue and Red versions, so filter by your copy below.
Gastly Guide
At 375 BST, Gastly is firmly in pre-evolution territory. Evolve it into Haunter before bringing it to any serious fight.
Gastly is a physical attacker with base 35 Attack. Fragile, can't afford to take many hits, too. Speed tells the real story. Base 80 Speed is workable. Faster than some, slower than many. Fits the attacker role.
In Red & Blue, 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 evolves into Haunter at level 25. Takes some grinding. Plan your team around the mid-game wait.
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