Utility
Balanced
340Low
35Very Slow
CTier

Mid-stage Pokemon like Koffing rarely see competitive play outside of special formats. It's a waypoint on the road to Weezing, which is where the real potential kicks in. Known as the Poison Gas Pokemon. Can go either physical or special depending on the set.

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.

Base Stats
340Avg
HP40
D
Attack65
C
Defense95
B
Sp. Atk60
C
Sp. Def45
D
Speed35
F
Total340
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Koffing yields +1 Def
HPAtkDef+1SpASpDSpe
Details
Catch190EasyMedium Fast1M XP0.6m / 2'00"1kg / 2.2 lbs68Base XP
Pokedex Entries

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

Brilliant Diamond / Shining Pearl

Koffing Weakness

Good

Ground and Psychic-type moves hit Koffing for super-effective damage. 5 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.

4xCriticali
None
¼xResisti
None
0xImmunei
STAB (2)i
2Weak
5Resist
1Immune
Scorei+1
Abilities
LevitateEvades ground moves.
Neutralizing GasNeutralizes abilities of all Pokémon in battle.
StenchHAHas a 10% chance of making target Pokémon flinch with each hit.
Levitate grants Ground immunity

One evolution ahead. Koffing grows into Weezing through a straightforward two-stage chain. Plenty of partners for breeding via one egg group. Eggs are average hatch time. The evolved forms gain up to 150 total stats over Koffing.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Koffing
Poison
Weezing
Poison
HP
40
65+25
ATK
65
90+25
DEF
95
120+25
SP.ATK
60
85+25
SP.DEF
45
70+25
SPE
35
60+25
BST
340C-Tier
490B-Tier+150
ROLE
Balanced
Balanced
TYPE
Utility
Mixed
Breeding
Very Easy

Breed Koffing easily with 52 breeding partners from the Indeterminate egg group. Pass egg moves like Curse, Pain Split, Spit Up and 3 more to offspring.

Egg Groups
Indeterminate
Gender
50.0%50.0%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body
Egg Moves
6moves
Breed With (best first)
gardevoirgalladepolteageistalcremiegastrodontrevenantpincurchinshellosphantumpsinisteakirliamilcery

Neutralizinggas and Eviolite give Koffing staying power beyond its evolution stage. Modest nature boosts Sp. Atk, a spread EV build EVs set the spread, and the pre-evolution bulk actually works here.

Best Build

Utility
Ability
Neutralizinggas
Item
EvioliteBULK
Nature
Modest+SPA
EVs

Best Koffing Moveset

  • ThunderboltCoverage
  • Fire Blast
  • Sludge BombSTAB
  • Will O Wisp

Without breeding, Koffing misses out on Curse and Pain Split. That's 6 egg moves adding depth that the base kit lacks. STAB comes from Belch and Gunk Shot, with coverage across 7 types rounding things out.

Level-Up Moves

Lv 1
Poison Gas
9040Poison
Lv 1
Tackle
4010035Normal
Lv 4
Smog
307020Poison
Lv 8
Smokescreen
10020Normal
Lv 12
Clear Smog
5015Poison
Lv 16
Assurance
6010010Dark
Lv 20
Sludge
6510020Poison
Lv 24
Haze
30Ice
Lv 28
Self-Destruct
2001005Normal
Lv 32
Sludge Bomb
9010010Poison
Lv 36
Toxic
9010Poison
Lv 40
Belch
1209010Poison
Lv 44
Explosion
2501005Normal
Lv 48
Memento
10010Dark
Lv 52
Destiny Bond
5Ghost

TM Moves

Src
TM13
Acid Spray
4010020Poison
TM66
Body Slam
8510015Normal
TM224
Curse
10Ghost
TM94
Dark Pulse
8010015Dark
TM47
Endure+4
10Normal
TM25
Facade
7010020Normal
TM141
Fire Blast
110855Fire
TM125
Flamethrower
9010015Fire
TM102
Gunk Shot
120805Poison
TM180
Gyro Ball
1005Steel
TM174
Haze
30Ice
TM202
Pain Split
20Normal
TM07
Protect+4
10Normal
TM16
Psybeam
6510020Psychic
TM50
Rain Dance
5Water
TM85
Rest
5Psychic
TM06
Scary Face
10010Normal
TM114
Shadow Ball
8010015Ghost
TM70
Sleep Talk
10Normal
TM148
Sludge Bomb
9010010Poison
TM214
Sludge Wave
9510010Poison
TM177
Spite
10010Ghost
TM103
Substitute
10Normal
TM49
Sunny Day
5Fire
TM01
Take Down
908520Normal
TM87
Taunt
10020Dark
TM171
Tera Blast
8010010Normal
TM18
Thief
6010025Dark
TM166
Thunder
1107010Electric
TM126
Thunderbolt
9010015Electric
TM175
Toxic
9010Poison
TM91
Toxic Spikes
20Poison
TM45
Venoshock
6510010Poison
TM107
Will-O-Wisp
8515Fire

Egg Moves

Src
Egg
Curse
10Ghost
Egg
Pain Split
20Normal
Egg
Spit Up
10010Normal
Egg
Spite
10010Ghost
Egg
Stockpile
20Normal
Egg
Swallow
10Normal

Tutor Moves

Koffing can't learn any Tutor moves

Koffing doesn't appear in Scarlet & Violet. Transfer it from Red, Gold, or Sword to add it to your collection. Check the source games below for encounter details.

Koffing is not available as a wild encounter in this game.

Also found in:

  • Koffing is meant to evolve into Weezing. At 340 BST, the stats aren't there for competitive play yet. Pre-evolution Pokemon rarely hold up against fully evolved threats.

  • Watch for Rhydon (Ground) and Alakazam (Psychic) when using Koffing. They all hit it super-effectively with STAB. Only 2 weaknesses means fewer dedicated counters to worry about. At base 35 Speed, Koffing won't outrun any of these threats so switching to a resist is usually the safer play.

  • Koffing can evolve into Weezing and Galarian Weezing depending on the method. Koffing is the base form in a 3-stage evolutionary line.

  • Levitate is what you want on Koffing. Every competitive set worth running is built with that ability in mind. The alternatives (Neutralizing Gas, Stench) work on paper but Levitate is what makes Koffing worth using.

  • Base 35 Speed is low. Priority moves or Trick Room are the way to go. On offense, Koffing is leaning toward the physical side (base 65 Attack).

  • Koffing appears in 20 games, including Yellow, Red & Blue, and Gold & Silver.

One of the original 151, Koffing has appeared in 20 games — nearly every mainline game. From Red & Blue through the latest titles, it's rarely been left out of a regional Pokedex.