Stats & Training
Defense and Attack carry most of Koffing's stat budget. Speed's the obvious dump stat. Common in the wild and yields 1 Defense stat exp. Follows a medium-fast 1M XP curve.
If one gets close enough to it when it expels poisonous gas, the gas swirling inside it can be seen.
Koffing Weakness
Ground and Psychic moves hit Koffing for super-effective damage. 4 resistances help offset the weaknesses. Koffing's physical bulk (base 95 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic |
| 0.5x (Resist) | Grass, Fighting, Poison, Bug |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
- Special stat split into Sp.Atk and Sp.Def
 Donphan Ground | B | |
Available Moves Moves
Damage vs Koffing View Donphan builds →Earthquake 2x122-143%KO Mud-Slap 2x26-31% | ||
 Nidoking PoisonGround | B | |
 Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Quagsire builds →Earthquake 2x93-110%KO Dig 2x75-89% Mud-Slap 2x22-26% | ||
 Sandslash Ground | C | |
Available Moves Moves
Damage vs Koffing View Sandslash builds →Dig 2x83-99% Mud-Slap 2x24-29% | ||
 Nidoqueen PoisonGround | C | |
Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Quagsire builds →Dig 2x77-92% Mud-Slap 2x24-29% | ||
 Onix RockGround | C | |
Available Moves Moves
Damage vs Koffing View Onix builds →Dig 2x53-63% Mud-Slap 2x16-19% | ||
 Cubone Ground | C | |
Obtain MethodGoldenrod City Gift Available Moves Moves
Damage vs Koffing View Cubone builds →Dig 2x53-63% Bone Club 2x45-53% Bonemerang 2x35-44% Mud-Slap 2x16-19% | ||
 Geodude RockGround | C | |
Available Moves Moves
Damage vs Koffing View Geodude builds →Dig 2x73-87% Mud-Slap 2x24-29% | ||
 Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x73-87% Mud-Slap 2x24-29% | ||
Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Quagsire builds →Dig 2x75-88% Mud-Slap 2x23-28% | ||
 Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Dig 2x81-96% Mud-Slap 2x23-28% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Koffing View Onix builds →Dig 2x47-56% Mud-Slap 2x16-20% | ||
Cubone Ground | C | |
Obtain MethodGoldenrod City Gift Available Moves Moves
Damage vs Koffing View Cubone builds →Dig 2x51-60% Bone Club 2x44-52% Bonemerang 2x33-40% Mud-Slap 2x16-20% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x68-80% Mud-Slap 2x20-24% | ||
Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Quagsire builds →Dig 2x73-86% Mud-Slap 2x22-27% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Dig 2x79-94% Mud-Slap 2x22-27% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Koffing View Onix builds →Dig 2x45-55% Mud-Slap 2x16-19% | ||
Cubone Ground | C | |
Obtain MethodGoldenrod City Gift Available Moves Moves
Damage vs Koffing View Cubone builds →Dig 2x49-58% Bone Club 2x43-51% Bonemerang 2x32-39% Mud-Slap 2x16-19% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x66-78% Mud-Slap 2x19-23% | ||
Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Quagsire builds →Dig 2x73-86% Mud-Slap 2x22-27% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Dig 2x79-94% Mud-Slap 2x22-27% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Koffing View Onix builds →Dig 2x45-55% Mud-Slap 2x16-19% | ||
Cubone Ground | C | |
Obtain MethodGoldenrod City Gift Available Moves Moves
Damage vs Koffing View Cubone builds →Dig 2x49-58% Bone Club 2x43-51% Bonemerang 2x32-39% Mud-Slap 2x16-19% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x66-78% Mud-Slap 2x19-23% | ||
Donphan Ground | B | |
Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Quagsire builds →Dig 2x73-86% Mud-Slap 2x22-27% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Dig 2x79-94% Mud-Slap 2x22-27% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Koffing View Onix builds →Dig 2x45-55% Mud-Slap 2x16-19% | ||
Cubone Ground | C | |
Obtain MethodGoldenrod City Gift Available Moves Moves
Damage vs Koffing View Cubone builds →Dig 2x49-58% Bone Club 2x43-51% Bonemerang 2x32-39% Mud-Slap 2x16-19% | ||
In Crystal, Jynx can KO Koffing with Psychic (186-219%). Rhydon threatens a KO with Earthquake (129-152%).
 Jynx IcePsychic | B | |
Recommended Build ItemLeftovers Moves
Damage vs Koffing View Jynx builds →Ice Beam93-109%KO Psychic 2x186-219%KO Thief41-49% | ||
 Rhydon GroundRock | B | |
Recommended Build ItemLeftovers Moves
Damage vs Koffing View Rhydon builds →Rock Slide48-57% Earthquake 2x129-152%KO | ||
Crystal Evolution
One evolution ahead. Koffing grows into Weezing through a straightforward two-stage chain. A small partner pool for breeding via one egg group. Eggs are average hatch time. The evolved forms gain up to 150 total stats over Koffing. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Koffing easily with 11 breeding partners from the Indeterminate egg group. Pass egg moves like Destiny Bond, Pain Split, Psybeam and 2 more to offspring.
Crystal Koffing Best Moveset
Best Build
Gen 2 build content has limited support (no abilities).
Try selecting a different game/generation filter, or check back later.
Moves
Without breeding, Koffing misses out on Destiny Bond and Pain Split. That's 5 egg moves adding depth that the base kit lacks. STAB comes from Sludge Bomb and Sludge, with Normal and Fire coverage and more rounding things out.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Crystal Koffing Locations
Easy grab on Koffing with high spawn rates across 3 locations in early-game routes. The sorted list below shows the full spread so you can pick the most convenient spot.
Best Locations to Catch Koffing in Crystal
Walking and fixed encounters at Lv. 12-21 across 3 spots for Koffing. Sorted by progression so you can see what's reachable at your current point in the game.
Koffing Guide
Multiple options from Koffing: Weezing at level 35 and Galarian Weezing at level 35. Each branch takes the 340 BST base in a different direction.
Not a straight line. Koffing can become Weezing at level 35 and Galarian Weezing at level 35. Your choice depends on what you need.
For Crystal, you can run Koffing through the first few routes without issues. 340 BST won't carry you far though. Get it to Weezing as fast as you can.
You can find Koffing in Crystal. The Locations section has the full breakdown of routes and encounter details. It also appears in 19 other games across the series.
Game Availability
One of the original 151, Koffing has appeared in 20 games — most mainline games. From Red & Blue through the latest titles, it's rarely been left out of a regional Pokedex.
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