Muk

Muk is a Poison type Pokémon introduced in Generation 1. It is known as the Sludge Pokémon.

Muk has a new Alolan form introduced in Pokémon Sun/Moon.

Pokédex data

National № 089
Type Poison
Species Sludge Pokémon
Height 1.2 m (3′11″)
Weight 30.0 kg (66.1 lbs)
Abilities 1. Stench
2. Sticky Hold
Poison Touch (hidden ability)
Local № 089 (Red/Blue/Yellow)
117 (Gold/Silver/Crystal)
107 (Ruby/Sapphire/Emerald)
089 (FireRed/LeafGreen)
118 (HeartGold/SoulSilver)
065 (Black 2/White 2)
112 (Omega Ruby/Alpha Sapphire)
051 (Sun/Moon — Alola dex)
058 (U.Sun/U.Moon — Alola dex)
089 (Let's Go Pikachu/Let's Go Eevee)

Training

EV yield 1 HP, 1 Attack
Catch rate 75 (9.8% with PokéBall, full HP)
Base Friendship 70 (normal)
Base Exp. 175
Growth Rate Medium Fast

Breeding

Egg Groups Amorphous
Gender 50% male, 50% female
Egg cycles 20 (4,884–5,140 steps)

Base stats

HP 105
320 414
Attack 105
193 339
Defense 75
139 273
Sp. Atk 65
121 251
Sp. Def 100
184 328
Speed 50
94 218
Total 500 Min Max

The ranges shown on the right are for a level 100 Pokémon. Maximum values are based on a beneficial nature, 252 EVs, 31 IVs; minimum values are based on a hindering nature, 0 EVs, 0 IVs.

Type defenses

The effectiveness of each type on Muk.

Pokédex data

National № 089
Type Poison Dark
Species Sludge Pokémon
Height 1.0 m (3′03″)
Weight 52.0 kg (114.6 lbs)
Abilities 1. Poison Touch
2. Gluttony
Power of Alchemy (hidden ability)
Local № 089 (Red/Blue/Yellow)
117 (Gold/Silver/Crystal)
107 (Ruby/Sapphire/Emerald)
089 (FireRed/LeafGreen)
118 (HeartGold/SoulSilver)
065 (Black 2/White 2)
112 (Omega Ruby/Alpha Sapphire)
051 (Sun/Moon — Alola dex)
058 (U.Sun/U.Moon — Alola dex)
089 (Let's Go Pikachu/Let's Go Eevee)

Training

EV yield 1 HP, 1 Attack
Catch rate 75 (9.8% with PokéBall, full HP)
Base Friendship 70 (normal)
Base Exp. 175
Growth Rate Medium Fast

Breeding

Egg Groups Amorphous
Gender 50% male, 50% female
Egg cycles 20 (4,884–5,140 steps)

Base stats

HP 105
320 414
Attack 105
193 339
Defense 75
139 273
Sp. Atk 65
121 251
Sp. Def 100
184 328
Speed 50
94 218
Total 500 Min Max

The ranges shown on the right are for a level 100 Pokémon. Maximum values are based on a beneficial nature, 252 EVs, 31 IVs; minimum values are based on a hindering nature, 0 EVs, 0 IVs.

Type defenses

The effectiveness of each type on Muk.

Evolution chart

(Level 38)
#089
Muk
Poison
#088
Grimer
Alolan Grimer
Poison · Dark
(Level 38)
#089
Muk
Alolan Muk
Poison · Dark

Muk changes

Pokédex entries

Muk

Red
Blue
Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.
Yellow Smells so awful, it can cause fainting. Through degeneration, it lost its sense of smell.
Gold They love to gather in smelly areas where sludge accumulates, making the stench around them worse.
Silver Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.
Crystal As it moves, a very strong poison leaks from it, making the ground there barren for three years.
Ruby From MUK’s body seeps a foul fluid that gives off a nose-bendingly horrible stench. Just one drop of this POKéMON’s body fluid can turn a pool stagnant and rancid.
Sapphire This POKéMON’s favorite food is anything that is repugnantly filthy. In dirty towns where people think nothing of throwing away litter on the streets, MUK are certain to gather.
FireRed It is usually undetectable because it blends in with the ground. Touching it can cause terrible poisoning.
LeafGreen Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.
Emerald It prefers warm and humid habitats. In the summertime, the toxic substances in its body intensify, making MUK reek like putrid kitchen garbage.
Diamond
Pearl
Platinum
A toxic fluid seeps from its body. The fluid instantly kills plants and trees on contact.
HeartGold They love to gather in smelly areas where sludge accumulates, making the stench around them worse.
SoulSilver Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.
Black
White
A toxic fluid seeps from its body. The fluid instantly kills plants and trees on contact.
Black 2
White 2
It’s so stinky! Muk’s body contains toxic elements, and any plant will wilt when it passes by.
X They love to gather in smelly areas where sludge accumulates, making the stench around them worse.
Y A toxic fluid seeps from its body. The fluid instantly kills plants and trees on contact.
Omega Ruby From Muk’s body seeps a foul fluid that gives off a nose-bendingly horrible stench. Just one drop of this Pokémon’s body fluid can turn a pool stagnant and rancid.
Alpha Sapphire This Pokémon’s favorite food is anything that is repugnantly filthy. In dirty towns where people think nothing of throwing away litter on the streets, Muk are certain to gather.
Sun The stench it gives off will make your nose scrunch up. Still, there are Muk fans who think that’s a good thing.
Moon After recent environmental improvements, this Pokémon is now hardly seen at all. People speculate that it may go extinct at some point.
Ultra Sun Their food sources have decreased, and their numbers have declined sharply. Sludge ponds are being built to prevent their extinction.
Ultra Moon Because they scatter germs everywhere, they’ve long been targeted for extermination, leading to a steep decline in their population.
Let's Go Pikachu
Let's Go Eevee
Smells so awful, it can cause fainting. Through degeneration of its nose, it lost its sense of smell.

Alolan Muk

Sun The garbage it eats causes continuous chemical changes in its body, which produce its exceedingly vivid coloration.
Moon While it’s unexpectedly quiet and friendly, if it’s not fed any trash for a while, it will smash its Trainer’s furnishings and eat up the fragments.
Ultra Sun There are over a hundred kinds of poison inside its body. Chemical reactions between different poisons are the source of its vitality.
Ultra Moon What look like fangs and claws are actually crystallized poison that will afflict you at a mere touch, so don’t get too close.
Let's Go Pikachu
Let's Go Eevee
Muk’s coloration becomes increasingly vivid the more it feasts on its favorite dish—trash.

Moves learned by Muk

Moves learnt by level up

Muk learns the following moves in Pokémon Let's Go Pikachu & Let's Go Eevee at the levels specified.

Lv.
Move
Type
Cat.
Power
Acc.
1HardenNormal
1HazeIce
1MinimizeNormal
1MoonblastFairy 95 100
1Poison GasPoison 90
1PoundNormal 40 100
6HardenNormal
12MinimizeNormal
18DisableNormal 100
24SludgePoison 65 100
30ScreechNormal 85
36ToxicPoison 90
48Acid ArmorPoison
60Sludge BombPoison 90 100
Lv.
Move
Type
Cat.
Power
Acc.
1HardenNormal
1HazeIce
1MinimizeNormal
1MoonblastFairy 95 100
1Poison GasPoison 90
1PoundNormal 40 100
6HardenNormal
12MinimizeNormal
18DisableNormal 100
24BiteDark 60 100
30ScreechNormal 85
36CrunchDark 80 100
48Acid ArmorPoison
60Sludge BombPoison 90 100

Moves learnt by TM

Muk is compatible with these Technical Machines in Pokémon Let's Go Pikachu & Let's Go Eevee:

Moves learnt by level up

Muk learns the following moves in Pokémon Ultra Sun & Ultra Moon at the levels specified.

Lv.
Move
Type
Cat.
Power
Acc.
1HardenNormal
1Mud-SlapGround 20 100
1Poison GasPoison 90
1PoundNormal 40 100
1Venom DrenchPoison 100
4HardenNormal
7Mud-SlapGround 20 100
12DisableNormal 100
15SludgePoison 65 100
18Mud BombGround 65 85
21MinimizeNormal
26FlingDark 100
29Sludge BombPoison 90 100
32Sludge WavePoison 95 100
37ScreechNormal 85
40Gunk ShotPoison 120 80
46Acid ArmorPoison
52BelchPoison 120 90
57MementoDark 100
Lv.
Move
Type
Cat.
Power
Acc.
1BiteDark 60 100
1HardenNormal
1Poison GasPoison 90
1PoundNormal 40 100
1Venom DrenchPoison 100
4HardenNormal
7BiteDark 60 100
12DisableNormal 100
15Acid SprayPoison 40 100
18Poison FangPoison 50 100
21MinimizeNormal
26FlingDark 100
29Knock OffDark 65 100
32CrunchDark 80 100
37ScreechNormal 85
40Gunk ShotPoison 120 80
46Acid ArmorPoison
52BelchPoison 120 90
57MementoDark 100

Moves learnt on evolution

Muk learns the following moves when it evolves in Pokémon Ultra Sun & Ultra Moon (regardless of level).

Move
Type
Cat.
Power
Acc.
Venom DrenchPoison 100

Egg moves

Muk learns the following moves via breeding in Pokémon Ultra Sun & Ultra Moon. Details and compatible parents can be found on the Muk egg moves page.

Move
Type
Cat.
Power
Acc.
Acid SprayPoison 40 100
CurseGhost
HazeIce
ImprisonPsychic
LickGhost 30 100
Mean LookNormal
Power-Up PunchFighting 40 100
Scary FaceNormal 100
Shadow PunchGhost 60
Shadow SneakGhost 40 100
Spit UpNormal 100
StockpileNormal
SwallowNormal
Move
Type
Cat.
Power
Acc.
AssuranceDark 60 100
Clear SmogPoison 50
CurseGhost
ImprisonPsychic
Mean LookNormal
Power-Up PunchFighting 40 100
PursuitDark 40 100
Scary FaceNormal 100
Shadow SneakGhost 40 100
Spit UpNormal 100
SpiteGhost 100
StockpileNormal
SwallowNormal

Move Tutor moves

Muk can be taught these attacks in Pokémon Ultra Sun & Ultra Moon from move tutors (details):

Move
Type
Cat.
Power
Acc.
BlockNormal
Fire PunchFire 75 100
Focus PunchFighting 150 100
Giga DrainGrass 75 100
Gunk ShotPoison 120 80
Ice PunchIce 75 100
Pain SplitNormal
Shock WaveElectric 60
SnoreNormal 50 100
Thunder PunchElectric 75 100
Move
Type
Cat.
Power
Acc.
BlockNormal
Fire PunchFire 75 100
Focus PunchFighting 150 100
Gastro AcidPoison 100
Giga DrainGrass 75 100
Gunk ShotPoison 120 80
Ice PunchIce 75 100
Knock OffDark 65 100
Pain SplitNormal
RecycleNormal
Shock WaveElectric 60
SnoreNormal 50 100
SpiteGhost 100
Thunder PunchElectric 75 100

Moves learnt by TM

Muk is compatible with these Technical Machines in Pokémon Ultra Sun & Ultra Moon:

Transfer-only moves

Muk can only learn these moves in previous generations. It must be taught the moves in the appropriate game and then transferred to Pokémon Ultra Sun & Ultra Moon.
Note: Generation 1 and 2 refer to the 3DS Virtual Console titles, not the physical cartridges.

Move
Type
Cat.
Power
Acc.
Method
BideNormal Generation 1 — TM
Mega DrainGrass 40 100 Generation 1 — TM
RageNormal 20 100 Generation 1 — TM
Self-DestructNormal 200 100 Generation 1 — TM
Zap CannonElectric 120 50 Generation 2 — TM
Body SlamNormal 85 100 Generation 3 — Move tutor
Dynamic PunchFighting 100 50 Generation 3 — Move tutor
MimicNormal Generation 3 — Move tutor
CaptivateNormal 100 Generation 4 — TM
EndureNormal Generation 4 — TM
Natural GiftNormal 100 Generation 4 — TM
DigGround 80 100 Generation 6 — TM
IncinerateFire 60 100 Generation 6 — TM
Rock SmashFighting 40 100 Generation 6 — TM
Secret PowerNormal 70 100 Generation 6 — TM
StrengthNormal 80 100 Generation 6 — HM

Muk sprites

Type Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 Generation 6 Generation 7 Generation 8
Normal Muk  sprite from Red & Blue Muk  sprite from Silver Muk  sprite from Ruby & Sapphire Muk  sprite from Diamond & Pearl Muk  sprite from Black & White Muk  sprite from X & Y Muk  sprite from Ultra Sun & Ultra Moon
Shiny Muk Shiny sprite from Silver Muk Shiny sprite from Ruby & Sapphire Muk Shiny sprite from Diamond & Pearl Muk Shiny sprite from Black & White Muk Shiny sprite from X & Y Muk Shiny sprite from Ultra Sun & Ultra Moon

Where to find Muk

Red
Blue
Pokémon Mansion
Yellow Cinnabar Island, Power Plant, Pokémon Mansion
Gold
Silver
Crystal
Route 16, 17, 18, Celadon City
Ruby
Sapphire
FireRed
Evolve Grimer
LeafGreen Pokémon Mansion
Emerald Evolve Grimer
Diamond
Pearl
Platinum
Evolve Grimer
HeartGold
SoulSilver
Route 16, 17, 18, Celadon City
Black
White
Trade/migrate from another game
Black 2
White 2
Route 9, Castelia Sewers
X
Y
Trade/migrate from another game
Omega Ruby
Alpha Sapphire
Evolve Grimer
Sun
Moon
Ultra Sun
Ultra Moon
Evolve Grimer/Alolan Grimer
Let's Go Pikachu Power Plant, Pokémon Mansion
Let's Go Eevee Location data not yet available
Sword
Shield
Location data not yet available

Other languages

English Muk
Japanese ベトベトン (Betbeton)
German Sleimok
French Grotadmorv

Name origin

muck
dirt