Physical
Balanced
35Speed · Very Slow

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.

Base Stats
Avg
HP40
D
Attack65
C
Defense95
B
Sp. Atk60
C
Sp. Def45
D
Speed35
F
Total340
Details
Catch Rate
Easy190 / 255
Growth Rate
Medium Fast1M XP
Height0.6 m
Weight1.0 kg
Base XP68
Abilities
LevitateTop Pick
Evades ground moves.
Neutralizing Gas
Neutralizes abilities of all Pokémon in battle.
StenchHANot in game
Has a 10% chance of making target Pokémon flinch with each hit.
Levitate grants Ground immunity
EV Yield
HPAtkDef+1SpASpDSpe
Defense training source
Pokedex Entries

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

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.

Koffing Weakness and Resistance Chart
DamageTypes
2x (Weak)Ground, Psychic
0.5x (Resist)Grass, Fighting, Poison, Bug
Type ChartAvg
2Weak
4Resist
1Immune
Score0
Gen III Type Chart
  • Dark and Steel types added — Fairy does not exist yet
  • Moves are Physical or Special based on type, not per move
4xCritical
None
¼xResist
None
0xImmune
STAB (1)
How to Beat Koffing in Emerald (Best Counters)
Solrock
Solrock
RockPsychic
C
Obtain MethodMeteor Falls Surfing
Available Moves
Moves
  • PsychicTM29
  • ConfusionLv. 7
Damage vs Koffing
Psychic 2x
100-118%KO
Confusion 2x
56-68%
View Solrock builds →

Emerald 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

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 22 breeding partners from the Indeterminate egg group. Pass egg moves like Destiny Bond, Pain Split, Psybeam 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)
gardevoirkirliacastformraltsmukgengarweezingswalotmagcargohaunterwobbuffetgrimer

Emerald Koffing Best Moveset

Normal coverage gives Koffing answers even while choice-locked. Choice Band provides raw power at the cost of move flexibility, and max HP and Attack EVs with Levitate mean every prediction that lands hits hard.

Best Build

Experimental
Physical Wallbreaker
Ability
Levitate
Item
Choice BandPOWER
Best Nature for Koffing

Koffing best EVs are HP and Attack

EVs

Physical Wallbreaker Moveset

  • ExplosionCoverage
  • Will O Wisp
  • Sludge BombSTAB
  • Shadow Ball

Moves

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

Level-Up Moves

Lv 1
Poison Gas
5540Poison
Lv 1
Tackle
3510035Normal
Lv 9
Smog
207020Poison
Lv 17
Self-Destruct
B2001005Normal
Lv 21
Sludge
6510020Poison
Lv 25
Smokescreen
10020Normal
Lv 33
Haze
D30Ice
Lv 41
Explosion
S2501005Normal
Lv 45
Destiny Bond
B5Ghost
Lv 49
Memento
D10010Dark

TM Moves

TM
TM45
Attract
10015Normal
TM32
Double Team
15Normal
TM42
Facade
B7010020Normal
TM38
Fire Blast
B120855Fire
TM35
Flamethrower
D9510015Fire
HM05
Flash
7020Normal
TM21
Frustration
10020Normal
TM10
Hidden Power
6010015Normal
TM17
Protect+4
C10Normal
TM18
Rain Dance
C5Water
TM44
Rest
C10Psychic
TM27
Return
D10020Normal
TM43
Secret Power
7010020Normal
TM30
Shadow Ball
S8010015Ghost
TM34
Shock Wave
6020Electric
TM36
Sludge Bomb
S9010010Poison
TM11
Sunny Day
C5Fire
TM12
Taunt
C10020Dark
TM46
Thief
D6010025Dark
TM25
Thunder
D1207010Electric
TM24
Thunderbolt
D9510015Electric
TM41
Torment
D10015Dark
TM06
Toxic
C8510Poison

Egg Moves

Egg
Egg
Destiny Bond
B5Ghost
Egg
Pain Split
D20Normal
Egg
Psybeam
6510020Psychic
Egg
Psywave
8015Psychic
Egg
Screech
D8540Normal
Egg
Will-O-Wisp
S7515Fire

Tutor Moves

Tut
Tutor
Endure+4
D10Normal
Tutor
Explosion
S2501005Normal
Tutor
Mimic
10Normal
Tutor
Rollout
309020Rock
Tutor
Sleep Talk
D10Normal
Tutor
Snore
4010015Normal
Tutor
Substitute
C10Normal
Tutor
Swagger
9015Normal

Emerald Koffing Locations

decent spawn rates in early-game routes across 1 locations. Koffing's one of the easier catches on the list. Knock it out fast and save your time for harder targets.

Best Locations to Catch Koffing in Emerald

Fiery Path
Grass Lv.15-16 Volcano
25%Early

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 Emerald, 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 Emerald. 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.

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