poke.study

No. 0089

Muk

Sludge Pokémon

Muk
Official art
Poison
Height
1.2 m 3′11″
Weight
30 kg 66.1 lbs
Base stat total
500 top 30%
Introduced
Gen I
Abilities
Pokédex entryLet’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.
See all 16 entries

Base stats

HP105165–212320–414
Atk10599–172193–339
Def7572–139139–273
SpA6563–128121–251
SpD10094–167184–328
Spe5049–11294–218
Total500Higher than 70% of all Pokémon
HP105Atk105Def75Spe50SpD100SpA65

Ranges: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 1 HP, 1 Atk.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature

Speed tiers

Speed at Lv 50 in Pokémon Champions (base 50). Scarf and Tailwind use the Max+ value.

Max+112Max102No SP70Min63Scarf168Tailwind224

At max Speed, Muk outspeeds 11 of the 30 most used Pokémon in Champions VGC.

  1. 203Mega Garchomp ZModest · 32 SP · #21 in usage
  2. 200Mega GengarTimid · 32 SP · #26 in usage
  3. 190Mega Raichu YTimid · 23 SP · #13 in usage
  4. 189Mega SalamenceTimid · 32 SP · #4 in usage
  5. 184WhimsicottTimid · 32 SP · #23 in usage
  6. 178Mega MetagrossJolly · 32 SP · #28 in usage
  7. 178Mega StaraptorJolly · 32 SP · #29 in usage
  8. 172SneaslerAdamant · 32 SP · #2 in usage
  9. 169Mega FloetteTimid · 32 SP · #17 in usage
  10. 169GarchompJolly · 32 SP · #19 in usage
  11. 167Mega Charizard YTimid · 32 SP · #14 in usage
  12. 167Mega GardevoirTimid · 32 SP · #20 in usage
  13. 161IndeedeeTimid · 32 SP · #30 in usage
  14. 156Hisuian ArcanineJolly · 32 SP · #16 in usage
  15. 150ArchaludonTimid · 32 SP · #9 in usage
  16. 149GholdengoTimid · 32 SP · #8 in usage
  17. 143BasculegionJolly · 32 SP · #6 in usage
  18. 128PelipperTimid · 32 SP · #12 in usage
  19. 120VolcaronaBold · 0 SP · #25 in usage
  20. 112Muk · Max+32 SP, Speed-raising alignment
  21. 105RillaboomAdamant · 0 SP · #1 in usage
  22. 102Muk · Max32 SP, neutral alignment
  23. 101MiloticCalm · 0 SP · #15 in usage
  24. 95SylveonModest · 15 SP · #18 in usage
  25. 94Female IndeedeeRelaxed · 0 SP · #7 in usage
  26. 90PolitoedCalm · 0 SP · #22 in usage
  27. 90SinistchaBold · 0 SP · #24 in usage
  28. 85ArmarougeQuiet · 0 SP · #27 in usage
  29. 80IncineroarCareful · 0 SP · #3 in usage
  30. 80FarigirafBold · 0 SP · #11 in usage
  31. 70Muk · No SP0 SP, neutral alignment
  32. 70KingambitAdamant · 0 SP · #5 in usage
  33. 60Mega GolisopodAdamant · 0 SP · #10 in usage

Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Type matchups

Weak to

Ground2×Psychic2×

Resists

Bug½×Fairy½×Fighting½×Grass½×Poison½×
Takes normal damage from 11 types
NormalFlyingRockGhostSteelFireWaterElectricIceDragonDark

Abilities

  • Stench

    Has a 10% chance of making target Pokémon flinch with each hit.

  • Sticky Hold

    Prevents a held item from being removed by other Pokémon.

  • Poison TouchHidden ability

    Has a 30% chance of poisoning target Pokémon upon contact.

Competitive

SV SinglesZUSV Doubles(DUU)National DexRU

0.16% of teams · rank #143 · Singles · 1630+ rating · 6,316 battles · Sep 2026

Most common build

Item
Assault Vest
Ability
Poison Touch
Nature
Careful
EVs
252 HP / 4 Atk / 252 SpD
Tera Type
Ghost
  1. Poison Jab
  2. Knock Off
  3. Drain Punch
  4. Shadow Sneak

Each part is the most used on its own, so not every team runs this exact set.

Usage by rating

  • All players0.89%
  • Rated 1500+0.95%
  • Rated 1630+0.16%
  • Rated 1760+0.01%

Usage by month

Oct 20250.16%

Moves

  • Poison Jab100%
  • Knock Off99.4%
  • Drain Punch91.5%
  • Shadow Sneak91.1%
  • Zen Headbutt8.9%
  • Toxic8.5%
  • Rest0.4%
  • Acid Armor0.1%
  • Gunk Shot0%
  • Toxic Spikes0%

Items

  • Assault Vest90.9%
  • Leftovers8.9%
  • Poison Barb0.1%
  • Black Sludge0.1%
  • Rocky Helmet0%
  • Choice Band0%

Abilities

  • 91.1%
  • 8.9%
  • 0%

EV spreads

  • Careful 252 HP / 4 Atk / 252 SpD91.4%
  • Careful 252 HP / 4 Def / 252 SpD8.5%
  • Adamant 252 HP / 252 Atk / 4 SpD0.1%
  • Adamant 196 HP / 232 Atk / 80 SpD0%
  • Adamant 196 HP / 176 Atk / 136 SpD0%

Tera types

  • Ghost91%
  • Dark8.9%
  • Poison0.1%

Common teammates

Evolution

  1. #0088GrimerPoison
    1. Level 38#0089MukPoison

Moves

Level up 16

1HardenRaises the user’s Defense by one stage.NormalStatus——30
1Mud-SlapHas a 100% chance to lower the target’s accuracy by one stage.GroundSpec20100%10
1Poison GasPoisons the target.PoisonStatus—90%40
1PoundInflicts regular damage with no additional effect.NormalPhys40100%35
12DisableDisables the target’s last used move for 1-8 turns.NormalStatus—100%20
15SludgeHas a 30% chance to poison the target.PoisonSpec65100%20
18Mud ShotHas a 100% chance to lower the target’s Speed by one stage.GroundSpec5595%15
21MinimizeRaises the user’s evasion by two stages.NormalStatus——10
26ToxicBadly poisons the target, inflicting more damage every turn.PoisonStatus—90%10
29Sludge BombHas a 30% chance to poison the target.PoisonSpec90100%10
32Sludge WaveHas a 10% chance to poison the target.PoisonSpec95100%10
37ScreechLowers the target’s Defense by two stages.NormalStatus—85%40
40Gunk ShotHas a 30% chance to poison the target.PoisonPhys12080%5
46Acid ArmorRaises the user’s Defense by two stages.PoisonStatus——20
52BelchCan only be used after the user has eaten a berry.PoisonSpec12090%10
57MementoLowers the target’s Attack and Special Attack by two stages. User faints.DarkStatus—100%10

TM / HM / TR 59

TM01Take DownUser receives 1/4 the damage it inflicts in recoil.NormalPhys9085%20
TM05Mud-SlapHas a 100% chance to lower the target’s accuracy by one stage.GroundSpec20100%10
TM06Scary FaceLowers the target’s Speed by two stages.NormalStatus—100%10
TM07ProtectPrevents any moves from hitting the user this turn.NormalStatus——10
TM13Acid SprayLowers the target’s Special Defense by two stages.PoisonSpec40100%20
TM17Confuse RayConfuses the target.GhostStatus—100%10
TM18ThiefTakes the target’s item.DarkPhys60100%25
TM25FacadePower doubles if user is burned, paralyzed, or poisoned.NormalPhys70100%20
TM29HexHas double power if the target has a major status ailment.GhostSpec65100%10
TM32SwiftNever misses.NormalSpec60—20
TM35Mud ShotHas a 100% chance to lower the target’s Speed by one stage.GroundSpec5595%15
TM36Rock TombHas a 100% chance to lower the target’s Speed by one stage.RockPhys6095%15
TM43FlingThrows held item at the target; power depends on the item.DarkPhys—100%10
TM45VenoshockInflicts double damage if the target is Poisoned.PoisonSpec65100%10
TM47EndurePrevents the user’s HP from lowering below 1 this turn.NormalStatus——10
TM49Sunny DayChanges the weather to sunny for five turns.FireStatus——5
TM50Rain DanceChanges the weather to rain for five turns.WaterStatus——5
TM51SandstormChanges the weather to a sandstorm for five turns.RockStatus——10
TM55DigUser digs underground, dodging all attacks, and hits next turn.GroundPhys80100%10
TM58Brick BreakDestroys Reflect and Light Screen.FightingPhys75100%15
TM59Zen HeadbuttHas a 20% chance to make the target flinch.PsychicPhys8090%15
TM66Body SlamHas a 30% chance to paralyze the target.NormalPhys85100%15
TM67Fire PunchHas a 10% chance to burn the target.FirePhys75100%15
TM68Thunder PunchHas a 10% chance to paralyze the target.ElectricPhys75100%15
TM69Ice PunchHas a 10% chance to freeze the target.IcePhys75100%15
TM70Sleep TalkRandomly uses one of the user’s other three moves. Only works if the user is sleeping.NormalStatus——10
TM73Drain PunchDrains half the damage inflicted to heal the user.FightingPhys75100%10
TM80MetronomeRandomly selects and uses any move in the game.NormalStatus——10
TM83Poison JabHas a 30% chance to poison the target.PoisonPhys80100%20
TM85RestUser sleeps for two turns, completely healing itself.PsychicStatus——5
TM86Rock SlideHas a 30% chance to make the target flinch.RockPhys7590%10
TM87TauntFor the next few turns, the target can only use damaging moves.DarkStatus—100%20
TM91Toxic SpikesScatters poisoned spikes, poisoning opposing Pokémon that switch in.PoisonStatus——20
TM92ImprisonPrevents the target from using any moves that the user also knows.PsychicStatus——10
TM94Dark PulseHas a 20% chance to make the target flinch.DarkSpec80100%15
TM102Gunk ShotHas a 30% chance to poison the target.PoisonPhys12080%5
TM103SubstituteTransfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.NormalStatus——10
TM111Giga DrainDrains half the damage inflicted to heal the user.GrassSpec75100%10
TM114Shadow BallHas a 20% chance to lower the target’s Special Defense by one stage.GhostSpec80100%15
TM125FlamethrowerHas a 10% chance to burn the target.FireSpec90100%15
TM126ThunderboltHas a 10% chance to paralyze the target.ElectricSpec90100%15
TM130Helping HandAlly’s next move inflicts half more damage.NormalStatus——20
TM141Fire BlastHas a 10% chance to burn the target.FireSpec11085%5
TM148Sludge BombHas a 30% chance to poison the target.PoisonSpec90100%10
TM152Giga ImpactUser foregoes its next turn to recharge.NormalPhys15090%5
TM158Focus BlastHas a 10% chance to lower the target’s Special Defense by one stage.FightingSpec12070%5
TM163Hyper BeamUser foregoes its next turn to recharge.NormalSpec15090%5
TM166ThunderHas a 30% chance to paralyze the target.ElectricSpec11070%10
TM171Tera BlastIf the user has Terastallized, it unleashes energy of its Tera Type. This move inflicts damage using the Attack or Sp. Atk stat—whichever is higher for the user.NormalSpec80100%10
TM174HazeResets all Pokémon’s stats, accuracy, and evasion.IceStatus——30
TM175ToxicBadly poisons the target, inflicting more damage every turn.PoisonStatus—90%10
TM177SpiteLowers the PP of the target’s last used move by 4.GhostStatus—100%10
TM181Knock OffTarget drops its held item.DarkPhys65100%20
TM185LungeLowers the target’s Attack by one stage after inflicting damage.BugPhys80100%15
TM192Focus PunchIf the user takes damage before attacking, the attack is canceled.FightingPhys150100%20
TM199Lash OutPower doubles if the user had a stat stage lowered this turn.DarkPhys75100%5
TM202Pain SplitSets the user’s and targets’s HP to the average of their current HP.NormalStatus——20
TM214Sludge WaveHas a 10% chance to poison the target.PoisonSpec95100%10
TM224CurseGhosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.GhostStatus——10

Pokédex entries

Category
Sludge Pokémon
Debut
Kanto · Red & Green (JP)
Color
Purple
Shape
Habitat
Urban
Pal Park area
Field
Kanto#089Original Johto#117Original Hoenn#107Updated Johto#118Updated Unova#065New Hoenn#112Original Alola#051Original Melemele#051Original Ula’ula#029Updated Alola#058Updated Melemele#058Updated Ula’ula#029Let’s Go Kanto#089Paldea#195Blueberry#069

  1. Smells so awful, it can cause fainting. Through degeneration of its nose, it lost its sense of smell.

    Let’s Go, Pikachu! · Let’s Go, Eevee!

  2. Because they scatter germs everywhere, they’ve long been targeted for extermination, leading to a steep decline in their population.

    Ultra Moon

  3. Their food sources have decreased, and their numbers have declined sharply. Sludge ponds are being built to prevent their extinction.

    Ultra Sun

  4. After recent environmental improvements, this Pokémon is now hardly seen at all. People speculate that it may go extinct at some point.

    Moon

  5. The stench it gives off will make your nose scrunch up. Still, there are Muk fans who think that’s a good thing.

    Sun

  6. It’s so stinky! Muk’s body contains toxic elements, and any plant will wilt when it passes by.

    Black 2 · White 2

  7. A toxic fluid seeps from its body. The fluid instantly kills plants and trees on contact.

    Diamond · Pearl · Platinum · Black · White · Y

  8. It is usually undetectable because it blends in with the ground. Touching it can cause terrible poisoning.

    FireRed

  9. It prefers warm and humid habitats. In the summertime, the toxic substances in its body intensify, making MUK reek like putrid kitchen garbage.

    Emerald

  10. 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.

    Sapphire · Alpha Sapphire

  11. 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.

    Ruby · Omega Ruby

  12. As it moves, a very strong poison leaks from it, making the ground there barren for three years.

    Crystal

  13. Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.

    Silver · SoulSilver

  14. They love to gather in smelly areas where sludge ac­ cumulates, making the stench around them worse.

    Gold · HeartGold · X

  15. Smells so awful, it can cause fainting. Through degeneration, it lost its sense of smell.

    Yellow

  16. Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.

    Red · Blue · LeafGreen

Names around the world

Japanese
ベトベトン
Japanese (romaji)
Betbeton
Korean
질뻐기
Chinese (Traditional)
臭臭泥
Chinese (Simplified)
臭臭泥
French
Grotadmorv
German
Sleimok
Spanish
Muk
Italian
Muk

Sprites

Tap any sprite to show it on the Pokédex above. ▶ marks official animations; Gen VIII–IX models are large, so they load only when you tap them.

Official artwork

3D models

Generation I

Generation II

Generation III

Generation IV

Generation V

Generation VI

Generation VII

Generation VIII · animated models

Generation IX · animated models

Training

EV yield
1 HP, 1 Atk
Catch rate
75 ≈9.8% with a Poké Ball at full HP
Base friendship
70
Base experience
175
Growth rate
Medium

Breeding

Egg groups
Amorphous
Gender
♂ 50%♀ 50%
Hatch time
20 egg cycles ≈5,355 steps (Gen IV–VII)

Where to find

Green 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 38–40
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 40
Red 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 42
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 42
Let’s Go, Pikachu! 5 areas
  • Pokemon Mansion (1F)Walking in the overworld · Lv 39–44
  • Pokemon Mansion (2F)Walking in the overworld · Lv 39–44
  • Pokemon Mansion (3F)Walking in the overworld · Lv 39–44
  • Pokemon Mansion (B1F)Walking in the overworld · Lv 39–44
  • Power PlantWalking in the overworld · Lv 37–42
Y 1 area
  • Friend Safari (Poison)Walking in tall grass or a cave · Lv 30
X 1 area
  • Friend Safari (Poison)Walking in tall grass or a cave · Lv 30
White 2 4 areas
  • Castelia SewersFishing in dark spots, Surfing in dark spots · Lv 5–70
  • Castelia Sewers (unknown area 38)Fishing in dark spots, Surfing in dark spots · Lv 5–70
  • Road 9Walking in dark grass, Walking in tall grass or a cave · Lv 40–44
  • Route 9 (Hidden Grotto)Finding a Pokemon in a Hidden Grotto · Lv 35–39
Black 2 4 areas
  • Castelia SewersFishing in dark spots, Surfing in dark spots · Lv 5–70
  • Castelia Sewers (unknown area 38)Fishing in dark spots, Surfing in dark spots · Lv 5–70
  • Road 9Walking in dark grass, Walking in tall grass or a cave · Lv 40–44
  • Route 9 (Hidden Grotto)Finding a Pokemon in a Hidden Grotto · Lv 35–39
SoulSilver 5 areas
  • Celadon CitySurfing · Lv 15
  • Road 16Walking in tall grass or a cave · Lv 30
  • Road 17Walking in tall grass or a cave · Lv 30–32
  • Road 18Walking in tall grass or a cave · Lv 29–30
  • Safari Zone MarshlandSurfing, Walking in tall grass or a cave · Lv 38–48
HeartGold 5 areas
  • Celadon CitySurfing · Lv 15
  • Road 16Walking in tall grass or a cave · Lv 30
  • Road 17Walking in tall grass or a cave · Lv 30–32
  • Road 18Walking in tall grass or a cave · Lv 29–30
  • Safari Zone MarshlandSurfing, Walking in tall grass or a cave · Lv 38–48
LeafGreen 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 32
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 32
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 32
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 34
Crystal 4 areas
  • Celadon CitySurfing · Lv 15–19
  • Road 16Walking in tall grass or a cave · Lv 30
  • Road 17Walking in tall grass or a cave · Lv 33
  • Road 18Walking in tall grass or a cave · Lv 30
Silver 4 areas
  • Celadon CitySurfing · Lv 15–19
  • Road 16Walking in tall grass or a cave · Lv 30
  • Road 17Walking in tall grass or a cave · Lv 30–32
  • Road 18Walking in tall grass or a cave · Lv 30
Gold 4 areas
  • Celadon CitySurfing · Lv 15–19
  • Road 16Walking in tall grass or a cave · Lv 30
  • Road 17Walking in tall grass or a cave · Lv 30–32
  • Road 18Walking in tall grass or a cave · Lv 30
Yellow 5 areas
  • Cinnabar Lab (Cinnabar Island)Trade with an NPC · Lv 28–100
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 35–38
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 38–41
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 41
  • Power PlantWalking in tall grass or a cave · Lv 33–37
Blue 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 38–40
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 40
Red 4 areas
  • Pokemon Mansion (1F)Walking in tall grass or a cave · Lv 39
  • Pokemon Mansion (2F)Walking in tall grass or a cave · Lv 37
  • Pokemon Mansion (3F)Walking in tall grass or a cave · Lv 42
  • Pokemon Mansion (B1F)Walking in tall grass or a cave · Lv 42