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.
In hot places, its internal gases could expand and explode without any warning. Be very careful!
Koffing Weakness
GoodGround 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.
One evolution ahead. Koffing grows into Weezing through a straightforward two-stage chain. No compatible 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
Breed Koffing easily from the Indeterminate egg group.
Best Build
Let's Go Pikachu & Eevee uses different battle mechanics.
Competitive build content is not applicable for this game. Select a main series game for builds.
Level-up moves are just the starting point for Koffing. TMs unlock Normal and Dark coverage and more and turn a straightforward STAB kit around Sludge Bomb and Sludge into something with actual range.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
high spawn rates across 3 locations for Koffing in late-game routes. Scroll the sorted list below and pick whichever spot sits closest to your current route. The rate differences between locations are worth comparing.
Best Locations
3 walking spots from Lv. 37-44 for Koffing. Sorted by game progression with rates on each row, so you can compare without scrolling through everything.
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.
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.
- Gen IY
Yellow - Gen IRBDebut
Red & Blue - Gen IIGS
Gold & Silver - Gen IIC
Crystal - Gen IIIRS
Ruby & Sapphire - Gen IIIFRLG
FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS
HeartGold & SoulSilver - Gen IVDP
Diamond & Pearl - Gen VBW
Black & White - Gen VB2W2
Black 2 & White 2 - Gen VIXY
X & Y - Gen VIORAS
Omega Ruby & Alpha Sapphire - Gen VIIUSUM
Ultra Sun & Ultra Moon - Gen VIISM
Sun & Moon - Gen VIILGPE
Let's Go Pikachu & Eevee - Gen VIIISwSh
Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP
Brilliant Diamond & Shining Pearl - Gen IXSV
Scarlet & Violet - Gen IXLZA
Legends: Z-A