poke.study

No. 0110

Weezing

Poison Gas Pokémon

Weezing
Official art
Poison
Height
1.2 m 3′11″
Weight
9.5 kg 20.9 lbs
Base stat total
490 top 35%
Introduced
Gen I
Abilities
Pokédex entryShield
It can’t suck in air quite as well as a Galarian Weezing, but the toxins it creates are more potent than those of its counterpart.
See all 15 entries

Base stats

HP65125–172240–334
Atk9085–156166–306
Def120112–189220–372
SpA8581–150157–295
SpD7067–134130–262
Spe6058–123112–240
Total490Higher than 65% of all Pokémon
HP65Atk90Def120Spe60SpD70SpA85

Ranges: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 2 Def.

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

Speed tiers

Speed at Lv 50 in Pokémon Champions (base 60). Scarf and Tailwind use the Max+ value.

Max+123Max112No SP80Min72Scarf184Tailwind246

At max Speed, Weezing outspeeds 12 of the 30 most used Pokémon in Champions VGC.

  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. 123Weezing · Max+32 SP, Speed-raising alignment
  20. 120VolcaronaBold · 0 SP · #25 in usage
  21. 112Weezing · Max32 SP, neutral alignment
  22. 105RillaboomAdamant · 0 SP · #1 in usage
  23. 101MiloticCalm · 0 SP · #15 in usage
  24. 95SylveonModest · 15 SP · #18 in usage
  25. 94Female IndeedeeRelaxed · 0 SP · #7 in usage
  26. 90PolitoedCalm · 0 SP · #22 in usage
  27. 90SinistchaBold · 0 SP · #24 in usage
  28. 85ArmarougeQuiet · 0 SP · #27 in usage
  29. 80Weezing · No SP0 SP, neutral alignment
  30. 80IncineroarCareful · 0 SP · #3 in usage
  31. 80FarigirafBold · 0 SP · #11 in usage
  32. 70KingambitAdamant · 0 SP · #5 in usage
  33. 60Mega GolisopodAdamant · 0 SP · #10 in usage

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 SinglesZUSV Doubles(DUU)National DexRU

0.32% of teams · rank #132 · Singles · 1630+ rating · 20,763 battles · Sep 2026

Most common build

Item
Rocky Helmet
Ability
Levitate
Nature
Bold
EVs
252 HP / 252 Def / 4 SpA
Tera Type
Fairy
  1. Pain Split
  2. Flamethrower
  3. Sludge Bomb
  4. Toxic Spikes

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

Usage by rating

  • All players0.33%
  • Rated 1500+0.32%
  • Rated 1630+0.32%
  • Rated 1760+0.08%

Usage by month

Oct 20250.32%

Moves

  • Pain Split100%
  • Flamethrower82.5%
  • Sludge Bomb77.5%
  • Toxic Spikes64.8%
  • Will-O-Wisp52.7%
  • Haze17.7%
  • Clear Smog2.9%
  • Taunt2%
  • Thunderbolt0%
  • Explosion0%

Items

  • Rocky Helmet73.9%
  • Damp Rock23%
  • Sitrus Berry2.9%
  • Leftovers0.1%
  • Black Sludge0%
  • Custap Berry0%

Abilities

  • 82.4%
  • 17.6%

EV spreads

  • Bold 252 HP / 252 Def / 4 SpA49.9%
  • Bold 248 HP / 172 Def / 64 SpA / 24 Spe23%
  • Bold 252 HP / 252 Def / 4 SpD17.5%
  • Bold 252 HP / 252 Def / 4 Spe4.7%
  • Bold 248 HP / 252 Def / 8 SpA2.9%

Tera types

  • Fairy32.1%
  • Dark23.1%
  • Steel21.6%
  • Flying17.6%

Common teammates

Evolution

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

Moves

Level up 17

EvoDouble HitHits twice in one turn.NormalPhys3590%10
1Heat WaveHas a 10% chance to burn the target.FireSpec9590%10
1Poison GasPoisons the target.PoisonStatus—90%40
1SmogHas a 40% chance to poison the target.PoisonSpec3070%20
1SmokescreenLowers the target’s accuracy by one stage.NormalStatus—100%20
1TackleInflicts regular damage with no additional effect.NormalPhys40100%35
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
38ToxicBadly poisons the target, inflicting more damage every turn.PoisonStatus—90%10
44BelchCan only be used after the user has eaten a berry.PoisonSpec12090%10
50ExplosionUser faints.NormalPhys250100%5
56MementoLowers the target’s Attack and Special Attack by two stages. User faints.DarkStatus—100%10
62Destiny BondIf the user faints this turn, the target automatically will, too.GhostStatus——5

TM / HM / TR 37

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
TM118Heat WaveHas a 10% chance to burn the target.FireSpec9590%10
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
TM152Giga ImpactUser foregoes its next turn to recharge.NormalPhys15090%5
TM163Hyper BeamUser foregoes its next turn to recharge.NormalSpec15090%5
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

Pokédex entries

Category
Poison Gas Pokémon
Debut
Kanto · Red & Green (JP)
Color
Purple
Shape
Habitat
Urban
Pal Park area
Mountain
Kanto#110Original Johto#115Original Hoenn#109Updated Johto#116Updated Unova#047New Hoenn#114Let’s Go Kanto#110Galar#251Kitakami#136

  1. It can’t suck in air quite as well as a Galarian Weezing, but the toxins it creates are more potent than those of its counterpart.

    Shield

  2. It mixes gases between its two bodies. It’s said that these Pokémon were seen all over the Galar region back in the day.

    Sword

  3. This Pokémon lives and grows by absorbing poison gas, dust, and germs that exist inside garbage.

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

  4. Inhaling toxic fumes from trash and mixing them inside its body lets it spread an even fouler stench.

    Black 2 · White 2

  5. It grows by feeding on gases released by garbage. Though very rare, triplets have been found.

    Diamond · Pearl · Platinum · Black · White

  6. Where two kinds of poison gases meet, two KOFFING can fuse into a WEEZING over many years.

    LeafGreen

  7. Very rarely, a sudden mutation can result in two small KOFFING twins becoming conjoined as a WEEZING.

    FireRed · Y

  8. By diluting its toxic gases with a special process, the highest grade of perfume can be extracted. To WEEZING, gases emanating from garbage are the ultimate feast.

    Emerald

  9. WEEZING alternately shrinks and inflates its twin bodies to mix together toxic gases inside. The more the gases are mixed, the more powerful the toxins become. The Pokémon also becomes more putrid.

    Sapphire · Alpha Sapphire

  10. WEEZING loves the gases given off by rotted kitchen garbage. This Pokémon will find a dirty, unkempt house and make it its home. At night, when the people in the house are asleep, it will go through the trash.

    Ruby · Omega Ruby

  11. When it inhales poisonous gases from garbage, its body expands, and its insides smell much worse.

    Crystal

  12. Top-grade perfume is made using its internal poison gases by diluting them to the highest level.

    Silver · SoulSilver

  13. If one of the twin KOFFING inflates, the other one deflates. It constantly mixes its poisonous gases.

    Gold · HeartGold · X

  14. It lives and grows by absorbing dust, germs and poison gases that are contained in toxic waste and garbage.

    Yellow

  15. Where two kinds of poison gases meet, 2 KOFFINGs can fuse into a WEEZING over many years.

    Red · Blue

Names around the world

Japanese
マタドガス
Japanese (romaji)
Matadogas
Korean
또도가스
Chinese (Traditional)
雙彈瓦斯
Chinese (Simplified)
双弹瓦斯
French
Smogogo
German
Smogmog
Spanish
Weezing
Italian
Weezing

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
2 Def
Catch rate
60 ≈7.8% with a Poké Ball at full HP
Base friendship
70
Base experience
172
Growth rate
Medium

Breeding

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

Where to find

Shield: The Crown Tundra 1 area
  • Max LairCapture during a Dynamax Adventure. · Lv 65
Shield: The Isle of Armor 1 area
  • Random caves across the Isle of ArmorTrade with an NPC · Lv 15
Green 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 42
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 42
Red 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 38–40
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 40–42
Sword: The Crown Tundra 1 area
  • Max LairCapture during a Dynamax Adventure. · Lv 65
Sword: The Isle of Armor 1 area
  • Random caves across the Isle of ArmorTrade with an NPC · Lv 15
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
White 2 1 area
  • P2 LaboratoryWalking in tall grass or a cave · Lv 57–58
Black 2 1 area
  • P2 LaboratoryWalking in tall grass or a cave · Lv 57–58
SoulSilver 1 area
  • Safari Zone MarshlandWalking in tall grass or a cave · Lv 15–17
HeartGold 1 area
  • Safari Zone MarshlandWalking in tall grass or a cave · Lv 15–17
Platinum 4 areas
  • Road 227Walking in tall grass or a cave · Lv 52
  • Stark Mountain entranceWalking in tall grass or a cave · Lv 51–53
  • Stark Mountain exteriorWalking in tall grass or a cave · Lv 52
  • Stark Mountain main cavernWalking in tall grass or a cave · Lv 52–54
Pearl 4 areas
  • Road 227Walking in tall grass or a cave · Lv 55
  • Stark Mountain entranceWalking in tall grass or a cave · Lv 56
  • Stark Mountain exteriorWalking in tall grass or a cave · Lv 55
  • Stark Mountain main cavernWalking in tall grass or a cave · Lv 58
Diamond 4 areas
  • Road 227Walking in tall grass or a cave · Lv 55
  • Stark Mountain entranceWalking in tall grass or a cave · Lv 56
  • Stark Mountain exteriorWalking in tall grass or a cave · Lv 55
  • Stark Mountain main cavernWalking in tall grass or a cave · Lv 58
FireRed 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 32
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 32
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 32
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 34
Crystal 1 area
  • Burned Tower (B1F)Walking in tall grass or a cave · Lv 16
Blue 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 42
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 42
Red 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 38–40
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 40–42