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 EV. Follows a medium-fast 1M XP curve.
Its thin, filmy body is filled with gases that cause constant sniffles, coughs and teary eyes.
The poisonous gases it contains are a little bit lighter than air, keeping it slightly airborne.
Koffing Weakness
Ground and Psychic moves hit Koffing for super-effective damage. 4 resistances help offset the weaknesses. Levitate grants an additional Ground immunity, reshaping the matchup chart. 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 |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
 Whiscash WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Whiscash builds →Zen Headbutt 2x54-64% Mud-Slap 2x36-43% | ||
 Meditite FightingPsychic | D | |
Whiscash WaterGround | C | |
Available Moves Moves
Damage vs Koffing View Whiscash builds →Zen Headbutt 2x48-58% Mud Bomb 2x98-115%KO Mud-Slap 2x33-40% | ||
 Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Koffing View Bronzor builds →Extrasensory 2x63-75% Confusion 2x38-46% | ||
 Wooper WaterGround | D | |
Obtain MethodRuins Of Alph Surfing Available Moves Moves
Damage vs Koffing View Wooper builds →Mud Bomb 2x54-63% Mud Shot 2x42-52% | ||
 Spoink Psychic | D | |
 Drowzee Psychic | D | |
 Graveler RockGround | C | |
 Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Koffing View Bronzor builds →Extrasensory 2x57-68% Confusion 2x37-44% | ||
 Numel FireGround | D | |
 Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x68-80% Sand Tomb 2x33-40% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Earthquake 2x104-123%KO Dig 2x82-98% | ||
Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Koffing View Bronzor builds →Extrasensory 2x58-69% Confusion 2x36-43% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Koffing View Numel builds →Earth Power 2x119-141%KO Dig 2x58-69% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x70-83% Sand Tomb 2x34-40% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Earthquake 2x100-119%KO Dig 2x81-96% | ||
Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Koffing View Bronzor builds →Extrasensory 2x56-67% Confusion 2x37-44% | ||
Numel FireGround | D | |
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Koffing View Sandshrew builds →Dig 2x65-78% Sand Tomb 2x31-37% | ||
 Gligar Ground | C | |
Graveler RockGround | C | |
Available Moves Moves
Damage vs Koffing View Graveler builds →Earthquake 2x102-121%KO Dig 2x81-96% | ||
Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Koffing View Bronzor builds →Future Sight 2x84-99% Extrasensory 2x56-67% Confusion 2x37-45% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Koffing View Numel builds →Earth Power 2x119-140%KO Dig 2x60-70% | ||
In HeartGold & SoulSilver, Gliscor can KO Koffing with Earthquake (99-117%). Gardevoir's Psychic also KOs at 243-286%.
 Gliscor Ground | B | |
Recommended Build AbilityHypercutter ItemLeftovers NatureJolly Moves
Damage vs Koffing View Gliscor builds →Earthquake 2x99-117%KO Ice Fang21-25% | ||
 Celebi PsychicGrass | B | |
Recommended Build AbilityNatural Cure ItemLeftovers NatureBold Moves View Celebi builds →
| ||
 Gardevoir PsychicFairy | C | |
Recommended Build AbilityTrace ItemLeftovers NatureTimid Moves
Damage vs Koffing View Gardevoir builds →Psychic 2x243-286%KO Thunderbolt81-95% | ||
HeartGold & SoulSilver Evolution
One evolution ahead. Koffing grows into Weezing through a straightforward two-stage chain. A decent 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 31 breeding partners from the Indeterminate egg group. Pass egg moves like Curse, Destiny Bond, Grudge and 6 more to offspring.
HeartGold & SoulSilver Koffing Best Moveset
Best Build
No build content available for this Pokemon in Gen 4.
Try selecting a different game/generation filter, or check back later.
Moves
Without breeding, Koffing misses out on Curse and Destiny Bond. That's 9 egg moves adding depth that the base kit lacks. STAB comes from Sludge Bomb and Sludge, with coverage across 8 types rounding things out.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Transfer Moves
HeartGold & SoulSilver Koffing Locations
Easy grab on Koffing with high spawn rates across 6 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 HeartGold & SoulSilver
Which version you're playing matters for Koffing. 6 walking and fixed spots at Lv. 14-21 spread across HeartGold and SoulSilver, and some routes only appear in one cartridge. Check the version badges below.
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 HeartGold & SoulSilver, 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 HeartGold & SoulSilver. 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