Mixed
Balanced
490Average
60Moderate
CTier

Weezing doesn't stand out in any single area, but it gets the job done for in-game teams. Only weak to Ground, Psychic, and Bug. Been around since Gen 1. Flexible enough to run physical or special sets. It relies on priority moves or Scarf to keep up.

Nothing fancy in Weezing's spread. It leans mixed with Defense out front. And you'll get 2 Defense EVs per KO for it. Follows a medium-fast 1M XP curve.

Base Stats
490Above
HP65
C
Attack90
B
Defense120
A
Sp. Atk85
C
Sp. Def70
C
Speed60
C
Total490
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Weezing yields +2 Def
HPAtkDef+2SpASpDSpe
Details
Catch60Challenging•Medium Fast1M XP•1.2m / 3'11"•9.5kg / 20.9 lbs•172Base XP
Pokedex Entries

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

Red / Blue

Weezing Weakness

Vulnerable

Type-wise, Weezing takes extra damage from Ground, Psychic, and Bug. Weezing's physical bulk (base 120 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.

Gen I Type Chart
  • Only 15 types exist — Dark, Steel, and Fairy are absent
  • Ghost has no effect on Psychic (a known bug, fixed in Gen II)
  • Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
4xCriticali
None
2xWeaki
GroundPsychicBug
½xResisti
GrassFightingPoison
¼xResisti
None
0xImmunei
None
STAB (2)i
GrassBug
3Weak
3Resist
0Immune
Scorei-3
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

Koffing's chain ends at Weezing (at level 35). Despite 490 base stats, this Poison type doesn't breed. The evolution from Koffing pushed Weezing to 490 total stats. HP saw the largest single gain at +25.

How to Evolve

2 Forms
Koffing
#109Koffing
35
Level 35
Weezing
#110Weezing
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 not available · Introduced in Gen 2

Normal and Electric coverage keeps opponents guessing about Weezing's real targets. An item provides extra utility while flexible EVs EVs and a nature nature handle the stat profile. An ability ties it together.

Best Build

Utility
Ability
Not in Gen 1
Item
Not in Gen 1
Nature
Not in Gen 1

Best Weezing Moveset

  • ExplosionCoverage
  • SludgeSTAB
  • Fire Blast
  • ThunderboltCoverage

Recommended Teammates

Gengar
GengarGood
Tauros
TaurosDecent
Cloyster
CloysterDecent

Most of Weezing's flexibility comes from TMs. Same-type output runs through Sludge and Smog, but Normal and Fire and the rest of the TM pool push it from predictable to genuinely threatening.

Level-Up Moves

Lv 1
Sludge
6510020Poison
Lv 1
Smog
207020Poison
Lv 1
Tackle
3510035Normal
Lv 32
Sludge
6510020Poison
Lv 39
Smokescreen
—10020Normal
Lv 43
Self-Destruct
2001005Normal
Lv 49
Haze
——30Ice
Lv 53
Explosion
2501005Normal

TM Moves

Src
TM34
Bide+1
——10Normal
TM32
Double Team
——15Normal
TM47
Explosion
2501005Normal
TM38
Fire Blast
120855Fire
TM15
Hyper Beam
150905Normal
TM31
Mimic
——10Normal
TM20
Rage
2010020Normal
TM44
Rest
——10Psychic
TM36
Self-Destruct
2001005Normal
TM50
Substitute
——10Normal
TM25
Thunder
1107010Electric
TM24
Thunderbolt
9510015Electric
TM06
Toxic
—9010Poison

Egg Moves

Weezing doesn't have any Egg moves

Tutor Moves

Weezing can't learn any Tutor moves

Weezing starts showing up in late-game routes at decent spawn rates across 8 encounter spots. The list below is sorted so you can pick what fits your current progress without scrolling through everything.

Where To Catch Weezing in Red & Blue

Koffing is your first catch on the way to Weezing. You'll find walking encounters from Lv. 30-42 across 16 total spots in the chain.

  1. Koffing
    Step 1Catch Koffing
    Pokémon Mansion - 1F
    RedGrassLv.30-32CommonMidBuilding
    EFFORTLESS
    Pokémon Mansion - 2F
    RedGrassLv.30-34CommonMidBuilding
    EFFORTLESS
    Pokémon Mansion - 1F
    BlueGrassLv.30RareMidBuilding
    CHALLENGING
    Pokémon Mansion - 2F
    BlueGrassLv.30RareMidBuilding
    CHALLENGING
    Pokémon Mansion - B1F
    RedGrassLv.31-33CommonLateBuilding
    EFFORTLESS
    Pokémon Mansion - 3F
    RedGrassLv.31-35CommonLateBuilding
    EFFORTLESS
    Pokémon Mansion - 3F
    BlueGrassLv.34RareLateBuilding
    CHALLENGING
    Pokémon Mansion - B1F
    BlueGrassLv.35RareLateBuilding
    CHALLENGING
  2. Weezing
    Step 2Weezing ✓
    Pokémon Mansion - 3F
    RedGrassLv.38-40UncommonLateBuilding
    EASY
    Pokémon Mansion - B1F
    RedGrassLv.40-42UncommonLateBuilding
    EASY
    Pokémon Mansion - 1F
    RedGrassLv.37RareLateBuilding
    CHALLENGING
    Pokémon Mansion - 2F
    BlueGrassLv.37RareLateBuilding
    CHALLENGING
    Pokémon Mansion - 1F
    BlueGrassLv.39RareLateBuilding
    CHALLENGING
    Pokémon Mansion - 2F
    RedGrassLv.39RareLateBuilding
    CHALLENGING
    Pokémon Mansion - B1F
    BlueGrassLv.42RareLateBuilding
    CHALLENGING
    Pokémon Mansion - 3F
    BlueGrassLv.42RareLateBuilding
    CHALLENGING
    or evolve from Koffing (Step 1)

  • Weezing looks average on paper at 490 BST. But Levitate is why it sees play — build around that and it pulls its weight. C-Tier on our tier list.

  • Weezing's biggest threats include Golem (Ground), Starmie (Psychic), and Scyther (Bug), all carrying super-effective STAB moves.

  • Koffing evolves into Weezing at level 35. Weezing is the final evolution in a 3-stage line starting from Koffing. At 490 BST, it's got solid stats to work with.

  • Weezing is a mixed attacker — base 90 Attack and 85 Sp. Atk. Enough bulk to take a hit or two, too. But the speed tells the real story — at base 60 Speed, it won't be moving first often.

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

Available since Red & Blue, Weezing appears in 20 games spanning 9 generations. Beyond its original form, it gained a Galarian form in Generation 8.