As a Poison-type, Muk fills a straightforward role. Only weak to Ground and Psychic. Known as the Sludge Pokémon. Known as the Sludge Pokemon. The stat spread favors raw physical power.
Muk's built to absorb hits, not race for knockouts. Special bulk with HP doing the heavy lifting. And the medium-fast 1M XP curve means it won't take forever to bring up, worth 2 HP and Attack EVs.
It’s so stinky! Muk’s body contains toxic elements, and any plant will wilt when it passes by.
Muk Weakness
AvgGround and Psychic-type moves hit Muk for super-effective damage. The Poison typing picks up 4 resistances to work with. Muk's special bulk (base 100 Sp.Def) helps absorb special-type weaknesses, though physical moves exploit the lower Defense.
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
Muk is what Grimer becomes. Breed it for Grimer eggs (average hatch time). No compatible partners for breeding via one egg group. Eggs are average hatch time. The evolution from Grimer pushed Muk to 500 total stats. Sp.Def saw the largest single gain at +50.
How to Evolve
Breed with Muk to get Grimer eggs easily from the Indeterminate egg group. Notable egg moves include Acid Spray, Curse, Haze and 9 more.
The recommended build leans into Muk's strengths as a defensive wall. Black Sludge provides Poison-type passive recovery, and Defense and Sp. Def investment EVs back that up. Poisontouch rounds out the package.
Best Build
Best Muk Moveset
- Poison Jab
- Curse
- Gunk Shot
- Toxic
Recommended Teammates
Coverage runs deep. Muk can hit 10 types beyond STAB, including Ground and Normal. The offense anchors on Gunk Shot and Sludge Wave while TMs handle everything else.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Transfer Moves
Muk starts showing up in early-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 Muk in Black 2 & White 2
Grimer is your first catch on the way to Muk. You'll find surfing, walking, and more encounters from Lv. 5-70 across 18 total spots in the chain.
Step 1Catch GrimerEASYCastelia SewersBlack 2Surfing on waterLv.5-15CommonEarlyAnyEASYCastelia SewersWhite 2Surfing on waterLv.5-20CommonEarlyAnyShaking spotEASYCastelia SewersWhite 2Surfing on waterLv.5-15CommonEarlyAnyEASYCastelia SewersBlack 2Surfing on waterLv.5-20CommonEarlyAnyShaking spotEASYCastelia SewersBlack 2GrassLv.15-17UncommonEarlyAnyEASYCastelia SewersWhite 2GrassLv.15-17UncommonEarlyAnyEASYCastelia SewersWhite 2Super RodLv.40-60CommonLateAnyShaking spotEASYCastelia SewersWhite 2Super RodLv.40-70CommonLateAnyEASYCastelia SewersBlack 2Super RodLv.40-60CommonLateAnyShaking spotEASYCastelia SewersBlack 2Super RodLv.40-70CommonLateAny
Step 2Muk ✓HARDCastelia SewersBlack 2Surfing on waterLv.5-20RareEarlyAnyShaking spotHARDCastelia SewersWhite 2Surfing on waterLv.5-20RareEarlyAnyShaking spotCHALLENGINGRoute 9White 2GrassLv.40RareLateRouteAnyCHALLENGINGRoute 9Black 2GrassLv.40RareLateRouteAnyCHALLENGINGRoute 9White 2GrassLv.44RareLateRouteAnyDouble grassCHALLENGINGRoute 9Black 2GrassLv.44RareLateRouteAnyDouble grassMODERATECastelia SewersBlack 2Super RodLv.50-70UncommonPostAnyShaking spotMODERATECastelia SewersWhite 2Super RodLv.50-70UncommonPostAnyShaking spotor evolve from Grimer (Step 1)
Muk works as a tank with 500 BST behind it. B-Tier on our list — a solid choice for the right team. That 105 base HP does the heavy lifting.
Stench has a 10% chance of making target Pokémon flinch with each hit — that's the one you want on Muk. Poison Touch is the hidden ability. Niche, but it has its uses. Sticky Hold works too if your team needs something different.
Muk is a physical attacker with base 105 Attack. Tanky enough to absorb a few hits, too. But the speed tells the real story — base 50 Speed is low. Priority moves or Trick Room are the way to go. Fits the tank role.
Muk appears in 19 games, including Yellow, Red & Blue, and Gold & Silver.
Available since Red & Blue, Muk appears in 19 games spanning 9 generations. Beyond its original form, it gained an Alolan form in Generation 7.
- 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 VIISMAlolan
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