poke.study

No. 0109

Koffing

Poison Gas Pokémon

Koffing
Official art
Poison
Height
0.6 m 2′00″
Weight
1 kg 2.2 lbs
Base stat total
340 top 71%
Introduced
Gen I
Abilities
Pokédex entryShield
It adores polluted air. Some claim that Koffing used to be more plentiful in the Galar region than they are now.
See all 13 entries

Base stats

HP40100–147190–284
Atk6563–128121–251
Def9590–161175–317
SpA6058–123112–240
SpD4545–10685–207
Spe3536–9567–185
Total340Higher than 29% of all Pokémon
HP40Atk65Def95Spe35SpD45SpA60

Ranges: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 1 Def.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature

Speed tiers

Speed at Lv 50 in Pokémon Champions (base 35). Scarf and Tailwind use the Max+ value.

Max+95Max87No SP55Min49Scarf142Tailwind190

At max Speed, Koffing outspeeds 8 of the 30 most used Pokémon in Champions VGC, and ties 1.

  1. 203Mega Garchomp ZModest · 32 SP · #21 in usage
  2. 200Mega GengarTimid · 32 SP · #26 in usage
  3. 190Mega Raichu YTimid · 23 SP · #13 in usage
  4. 189Mega SalamenceTimid · 32 SP · #4 in usage
  5. 184WhimsicottTimid · 32 SP · #23 in usage
  6. 178Mega MetagrossJolly · 32 SP · #28 in usage
  7. 178Mega StaraptorJolly · 32 SP · #29 in usage
  8. 172SneaslerAdamant · 32 SP · #2 in usage
  9. 169Mega FloetteTimid · 32 SP · #17 in usage
  10. 169GarchompJolly · 32 SP · #19 in usage
  11. 167Mega Charizard YTimid · 32 SP · #14 in usage
  12. 167Mega GardevoirTimid · 32 SP · #20 in usage
  13. 161IndeedeeTimid · 32 SP · #30 in usage
  14. 156Hisuian ArcanineJolly · 32 SP · #16 in usage
  15. 150ArchaludonTimid · 32 SP · #9 in usage
  16. 149GholdengoTimid · 32 SP · #8 in usage
  17. 143BasculegionJolly · 32 SP · #6 in usage
  18. 128PelipperTimid · 32 SP · #12 in usage
  19. 120VolcaronaBold · 0 SP · #25 in usage
  20. 105RillaboomAdamant · 0 SP · #1 in usage
  21. 101MiloticCalm · 0 SP · #15 in usage
  22. 95Koffing · Max+32 SP, Speed-raising alignment
  23. 95SylveonModest · 15 SP · #18 in usage
  24. 94Female IndeedeeRelaxed · 0 SP · #7 in usage
  25. 90PolitoedCalm · 0 SP · #22 in usage
  26. 90SinistchaBold · 0 SP · #24 in usage
  27. 87Koffing · Max32 SP, neutral alignment
  28. 85ArmarougeQuiet · 0 SP · #27 in usage
  29. 80IncineroarCareful · 0 SP · #3 in usage
  30. 80FarigirafBold · 0 SP · #11 in usage
  31. 70KingambitAdamant · 0 SP · #5 in usage
  32. 60Mega GolisopodAdamant · 0 SP · #10 in usage
  33. 55Koffing · No SP0 SP, neutral alignment

Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Type matchups

Weak to

Ground2×Psychic2×

Resists

Bug½×Fairy½×Fighting½×Grass½×Poison½×
Takes normal damage from 11 types
NormalFlyingRockGhostSteelFireWaterElectricIceDragonDark

With Levitate: Ground becomes 0×

Abilities

  • Levitate

    Evades Ground moves.

  • Neutralizing Gas

    Neutralizes abilities of all Pokémon in battle.

  • StenchHidden ability

    Has a 10% chance of making target Pokémon flinch with each hit.

Competitive

SV SinglesLC

1.44% of teams · rank #40 · Singles, first stages at Lv 5 · 1630+ rating · 7,479 battles · Sep 2026

Most common build

Item
Eviolite
Ability
Neutralizing Gas
Nature
Modest
EVs
36 HP / 156 Def / 196 SpA / 76 Spe
Tera Type
Water
  1. Sludge Bomb
  2. Will-O-Wisp
  3. Thunderbolt
  4. Pain Split

Each part is the most used on its own, so not every team runs this exact set.

Usage by rating

  • All players2.07%
  • Rated 1500+1.65%
  • Rated 1630+1.44%
  • Rated 1760+2.65%

Usage by month

Oct 20251.44%

Moves

  • Sludge Bomb90.9%
  • Will-O-Wisp90.2%
  • Thunderbolt87.6%
  • Pain Split58%
  • Thief37.1%
  • Fire Blast17.6%
  • Dark Pulse4%
  • Flamethrower3.6%
  • Sludge Wave2.3%
  • Clear Smog2.2%

Items

  • Eviolite97%
  • Leftovers1.3%
  • Choice Scarf1.3%
  • Eject Button0.2%
  • No item0.1%
  • Red Card0.1%

Abilities

  • 86.4%
  • 13.6%
  • 0%

EV spreads

  • Modest 36 HP / 156 Def / 196 SpA / 76 Spe80.1%
  • Modest 156 Def / 196 SpA / 156 SpD4.6%
  • Bold 236 Def / 116 SpA / 156 SpD2.4%
  • Bold 76 Def / 196 SpA / 76 SpD / 156 Spe2.1%
  • Modest 36 HP / 156 Def / 116 SpA / 156 Spe1.4%

Tera types

  • Water52.2%
  • Fairy31.7%
  • Steel5.6%
  • Dark4.1%

Common teammates

Evolution

  1. #0109KoffingPoison
    1. Level 35#0110WeezingPoison

Moves

Level up 15

1Poison GasPoisons the target.PoisonStatus—90%40
1TackleInflicts regular damage with no additional effect.NormalPhys40100%35
4SmogHas a 40% chance to poison the target.PoisonSpec3070%20
8SmokescreenLowers the target’s accuracy by one stage.NormalStatus—100%20
12Clear SmogRemoves all of the target’s stat modifiers.PoisonSpec50—15
16AssurancePower is doubled if the target has already received damage this turn.DarkPhys60100%10
20SludgeHas a 30% chance to poison the target.PoisonSpec65100%20
24HazeResets all Pokémon’s stats, accuracy, and evasion.IceStatus——30
28Self-DestructUser faints.NormalPhys200100%5
32Sludge BombHas a 30% chance to poison the target.PoisonSpec90100%10
36ToxicBadly poisons the target, inflicting more damage every turn.PoisonStatus—90%10
40BelchCan only be used after the user has eaten a berry.PoisonSpec12090%10
44ExplosionUser faints.NormalPhys250100%5
48MementoLowers the target’s Attack and Special Attack by two stages. User faints.DarkStatus—100%10
52Destiny BondIf the user faints this turn, the target automatically will, too.GhostStatus——5

TM / HM / TR 34

TM01Take DownUser receives 1/4 the damage it inflicts in recoil.NormalPhys9085%20
TM06Scary FaceLowers the target’s Speed by two stages.NormalStatus—100%10
TM07ProtectPrevents any moves from hitting the user this turn.NormalStatus——10
TM13Acid SprayLowers the target’s Special Defense by two stages.PoisonSpec40100%20
TM16PsybeamHas a 10% chance to confuse the target.PsychicSpec65100%20
TM18ThiefTakes the target’s item.DarkPhys60100%25
TM25FacadePower doubles if user is burned, paralyzed, or poisoned.NormalPhys70100%20
TM45VenoshockInflicts double damage if the target is Poisoned.PoisonSpec65100%10
TM47EndurePrevents the user’s HP from lowering below 1 this turn.NormalStatus——10
TM49Sunny DayChanges the weather to sunny for five turns.FireStatus——5
TM50Rain DanceChanges the weather to rain for five turns.WaterStatus——5
TM66Body SlamHas a 30% chance to paralyze the target.NormalPhys85100%15
TM70Sleep TalkRandomly uses one of the user’s other three moves. Only works if the user is sleeping.NormalStatus——10
TM85RestUser sleeps for two turns, completely healing itself.PsychicStatus——5
TM87TauntFor the next few turns, the target can only use damaging moves.DarkStatus—100%20
TM91Toxic SpikesScatters poisoned spikes, poisoning opposing Pokémon that switch in.PoisonStatus——20
TM94Dark PulseHas a 20% chance to make the target flinch.DarkSpec80100%15
TM102Gunk ShotHas a 30% chance to poison the target.PoisonPhys12080%5
TM103SubstituteTransfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.NormalStatus——10
TM107Will-O-WispBurns the target.FireStatus—85%15
TM114Shadow BallHas a 20% chance to lower the target’s Special Defense by one stage.GhostSpec80100%15
TM125FlamethrowerHas a 10% chance to burn the target.FireSpec90100%15
TM126ThunderboltHas a 10% chance to paralyze the target.ElectricSpec90100%15
TM141Fire BlastHas a 10% chance to burn the target.FireSpec11085%5
TM148Sludge BombHas a 30% chance to poison the target.PoisonSpec90100%10
TM166ThunderHas a 30% chance to paralyze the target.ElectricSpec11070%10
TM171Tera BlastIf the user has Terastallized, it unleashes energy of its Tera Type. This move inflicts damage using the Attack or Sp. Atk stat—whichever is higher for the user.NormalSpec80100%10
TM174HazeResets all Pokémon’s stats, accuracy, and evasion.IceStatus——30
TM175ToxicBadly poisons the target, inflicting more damage every turn.PoisonStatus—90%10
TM177SpiteLowers the PP of the target’s last used move by 4.GhostStatus—100%10
TM180Gyro BallPower raises when the user has lower Speed, up to a maximum of 150.SteelPhys—100%5
TM202Pain SplitSets the user’s and targets’s HP to the average of their current HP.NormalStatus——20
TM214Sludge WaveHas a 10% chance to poison the target.PoisonSpec95100%10
TM224CurseGhosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.GhostStatus——10

Egg moves 6

EggCurseGhosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.GhostStatus——10
EggPain SplitSets the user’s and targets’s HP to the average of their current HP.NormalStatus——20
EggSpit UpPower is 100 times the amount of energy Stockpiled.NormalSpec—100%10
EggSpiteLowers the PP of the target’s last used move by 4.GhostStatus—100%10
EggStockpileStores energy up to three times for use with Spit Up and Swallow.NormalStatus——20
EggSwallowRecovers 1/4 HP after one Stockpile, 1/2 HP after two Stockpiles, or full HP after three Stockpiles.NormalStatus——10

Pokédex entries

Category
Poison Gas Pokémon
Debut
Kanto · Red & Green (JP)
Color
Purple
Shape
Habitat
Urban
Pal Park area
Mountain
Kanto#109Original Johto#114Original Hoenn#108Updated Johto#115Updated Unova#046New Hoenn#113Let’s Go Kanto#109Galar#250Kitakami#135

  1. It adores polluted air. Some claim that Koffing used to be more plentiful in the Galar region than they are now.

    Shield

  2. Its body is full of poisonous gas. It floats into garbage dumps, seeking out the fumes of raw, rotting trash.

    Sword

  3. Toxic gas is held within its thin, balloon-shaped body, so it can cause massive explosions.

    Black 2 · White 2

  4. Lighter-than-air gases in its body keep it aloft. The gases not only smell, they are also explosive.

    Diamond · Pearl · Platinum · Black · White · Y

  5. Its thin, balloon-like body is inflated by horribly toxic gases. It reeks when it is nearby.

    FireRed · X

  6. Getting up close to a KOFFING will give you a chance to observe, through its thin skin, the toxic gases swirling inside. It blows up at the slightest stimulation.

    Emerald

  7. KOFFING embodies toxic substances. It mixes the toxins with raw garbage to set off a chemical reaction that results in a terribly powerful poison gas. The higher the temperature, the more gas is concocted by this Pokémon.

    Sapphire · Alpha Sapphire

  8. If KOFFING becomes agitated, it raises the toxicity of its internal gases and jets them out from all over its body. This Pokémon may also overinflate its round body, then explode.

    Ruby · Omega Ruby

  9. If one gets close enough to it when it expels poison­ ous gas, the gas swirling inside it can be seen.

    Crystal

  10. The poisonous gases it contains are a little bit lighter than air, keeping it slightly airborne.

    Silver · SoulSilver

  11. Its thin, filmy body is filled with gases that cause constant sniffles, coughs and teary eyes.

    Gold · HeartGold

  12. In hot places, its internal gases could expand and explode without any warning. Be very careful!

    Yellow · Let’s Go, Pikachu! · Let’s Go, Eevee!

  13. Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.

    Red · Blue · LeafGreen

Names around the world

Japanese
ドガース
Japanese (romaji)
Dogars
Korean
또가스
Chinese (Traditional)
瓦斯彈
Chinese (Simplified)
瓦斯弹
French
Smogo
German
Smogon
Spanish
Koffing
Italian
Koffing

Sprites

Tap any sprite to show it on the Pokédex above. ▶ marks official animations; Gen VIII–IX models are large, so they load only when you tap them.

Official artwork

3D models

Generation I

Generation II

Generation III

Generation IV

Generation V

Generation VI

Generation VII

Generation VIII · animated models

Generation IX · animated models

Training

EV yield
1 Def
Catch rate
190 ≈24.8% with a Poké Ball at full HP
Base friendship
70
Base experience
68
Growth rate
Medium

Breeding

Egg groups
Amorphous
Gender
♂ 50%♀ 50%
Hatch time
20 egg cycles ≈5,355 steps (Gen IV–VII)

Where to find

Green 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 30
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 30
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 34
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 35
Red 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 30–32
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 30–34
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 31–35
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 31–33
Shield 11 areas
  • Dusty BowlWalking in the overworld · Lv 42–60
  • East Lake Axewell (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–30
  • Giant's Cap (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–50
  • Giant's Mirror (Area 2)Walking in the overworld · Lv 42–60
  • Giant's Mirror (Main Area)Walking in tall grass or a cave · Lv 26–60
  • Hammerlocke Hills (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
  • Motostoke OutskirtsWalking in the overworld · Lv 22–26
  • Motostoke RiverbankWalking in the overworld · Lv 28–60
  • Motostoke Riverbank (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–50
  • North Lake Miloch (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–30
  • North Lake Miloch (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–30
Sword 11 areas
  • Dusty BowlWalking in the overworld · Lv 42–60
  • East Lake Axewell (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–30
  • Giant's Cap (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–50
  • Giant's Mirror (Area 2)Walking in the overworld · Lv 42–60
  • Giant's Mirror (Main Area)Walking in tall grass or a cave · Lv 26–60
  • Hammerlocke Hills (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
  • Motostoke OutskirtsWalking in the overworld · Lv 22–26
  • Motostoke RiverbankWalking in the overworld · Lv 26–60
  • Motostoke Riverbank (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–50
  • North Lake Miloch (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–30
  • North Lake Miloch (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 15–30
Let’s Go, Eevee! 5 areas
  • Pokemon Mansion (1F)Walking in the overworld · Lv 39–44
  • Pokemon Mansion (2F)Walking in the overworld · Lv 39–44
  • Pokemon Mansion (3F)Walking in the overworld · Lv 39–44
  • Pokemon Mansion (B1F)Walking in the overworld · Lv 39–44
  • Power PlantWalking in the overworld · Lv 37–42
Omega Ruby 1 area
  • Fiery PathEncountering 5 Pokemon within grass, flowers, or within a cave · Lv 8
White 2 1 area
  • Virbank Complex (inner)Walking in dark grass, Walking in tall grass or a cave · Lv 10–14
Black 2 1 area
  • Virbank Complex (inner)Walking in dark grass, Walking in tall grass or a cave · Lv 10–14
SoulSilver 4 areas
  • Burned Tower (1F)Walking in tall grass or a cave · Lv 14–16
  • Burned Tower (B1F)Walking in tall grass or a cave · Lv 14–16
  • Safari Zone MarshlandWalking in tall grass or a cave · Lv 15–17
  • Team Rocket HQStatic encounter · Lv 21
HeartGold 4 areas
  • Burned Tower (1F)Walking in tall grass or a cave · Lv 14–16
  • Burned Tower (B1F)Walking in tall grass or a cave · Lv 14–16
  • Safari Zone MarshlandWalking in tall grass or a cave · Lv 15–17
  • Team Rocket HQStatic encounter · Lv 21
Platinum 1 area
  • Stark Mountain main cavernWalking in tall grass or a cave · Lv 53
LeafGreen 5 areas
  • Celadon CitySurfing · Lv 30–40
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 28
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 28
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 28
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 28
FireRed 5 areas
  • Celadon CitySurfing · Lv 30–40
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 28–30
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 28–30
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 28–30
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 28–30
Emerald 1 area
  • Fiery PathWalking in tall grass or a cave · Lv 15–16
Sapphire 1 area
  • Fiery PathWalking in tall grass or a cave · Lv 14
Ruby 1 area
  • Fiery PathWalking in tall grass or a cave · Lv 15–16
Crystal 3 areas
  • Burned Tower (1F)Walking in tall grass or a cave · Lv 14
  • Burned Tower (B1F)Walking in tall grass or a cave · Lv 12–16
  • Team Rocket HQStatic encounter · Lv 21
Silver 3 areas
  • Burned Tower (1F)Walking in tall grass or a cave · Lv 14–16
  • Burned Tower (B1F)Walking in tall grass or a cave · Lv 14–16
  • Team Rocket HQStatic encounter · Lv 21
Gold 3 areas
  • Burned Tower (1F)Walking in tall grass or a cave · Lv 14–16
  • Burned Tower (B1F)Walking in tall grass or a cave · Lv 14–16
  • Team Rocket HQStatic encounter · Lv 21
Blue 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 30
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 30
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 34
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 35
Red 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 30–32
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 30–34
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 31–35
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 31–33