Stats & Training
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 is usually undetectable because it blends in with the ground. Touching it can cause terrible poisoning.
Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.
Muk Weakness
Ground and Psychic 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.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic |
| 0.5x (Resist) | Grass, Fighting, Poison, Bug |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Muk View Dugtrio builds →Earthquake 2x81-95% Dig 2x65-77% Sand Tomb 2x29-35% Mud-Slap 2x18-22% | ||
Sandslash Ground | C | |
Available Moves Moves
Damage vs Muk View Sandslash builds →Earthquake 2x81-95% Dig 2x65-77% Sand Tomb 2x29-35% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Muk View Nidoqueen builds →Earthquake 2x75-88% Dig 2x61-72% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Muk View Nidoking builds →Earthquake 2x82-97% Dig 2x66-78% | ||
Rhydon GroundRock | C | |
Available Moves Moves
Damage vs Muk View Rhydon builds →Earthquake 2x101-118%KO Dig 2x81-95% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Muk View Geodude builds →Earthquake 2x70-84% Dig 2x59-70% | ||
Abra Psychic | C | |
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x70-84% Dig 2x55-66% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Muk View Geodude builds →Earthquake 2x70-84% Dig 2x59-70% | ||
Abra Psychic | C | |
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x70-84% Dig 2x55-66% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Muk View Dugtrio builds →Earthquake 2x80-94% Dig 2x63-75% Sand Tomb 2x31-36% Mud-Slap 2x19-22% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Muk View Onix builds →Earthquake 2x47-56% Dig 2x37-44% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Muk View Geodude builds →Earthquake 2x68-81% Dig 2x54-64% | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Muk View Cubone builds →Earthquake 2x49-58% Dig 2x40-47% Bone Club 2x32-39% Bonemerang 2x26-31% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x66-78% Dig 2x52-61% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Muk View Dugtrio builds →Earthquake 2x81-96% Dig 2x66-79% Sand Tomb 2x31-37% Mud-Slap 2x18-22% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Muk View Onix builds →Earthquake 2x46-54% Dig 2x37-44% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Muk View Rhyhorn builds →Earthquake 2x73-86% Dig 2x58-69% | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Muk View Cubone builds →Earthquake 2x50-59% Dig 2x42-49% Bone Club 2x33-39% Bonemerang 2x27-32% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x66-79% Dig 2x54-64% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Muk View Dugtrio builds →Earthquake 2x81-96% Dig 2x66-79% Sand Tomb 2x31-37% Mud-Slap 2x18-22% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Muk View Onix builds →Earthquake 2x46-54% Dig 2x37-44% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Muk View Rhyhorn builds →Earthquake 2x73-86% Dig 2x58-69% | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Muk View Cubone builds →Earthquake 2x50-59% Dig 2x42-49% Bone Club 2x33-39% Bonemerang 2x27-32% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x66-79% Dig 2x54-64% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Muk View Dugtrio builds →Earthquake 2x78-92% Dig 2x63-74% Sand Tomb 2x28-34% Mud-Slap 2x18-21% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Muk View Onix builds →Earthquake 2x43-51% Dig 2x34-41% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Muk View Rhyhorn builds →Earthquake 2x69-81% Dig 2x55-65% | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Muk View Cubone builds →Earthquake 2x46-55% Dig 2x37-44% Bone Club 2x31-37% Bonemerang 2x24-28% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x63-74% Dig 2x51-60% Sand Tomb 2x24-28% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Muk View Dugtrio builds →Earthquake 2x81-95% Dig 2x65-77% Sand Tomb 2x29-35% Mud-Slap 2x18-22% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Muk View Onix builds →Earthquake 2x45-53% Dig 2x37-43% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Muk View Rhyhorn builds →Earthquake 2x71-83% Dig 2x57-67% | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Muk View Cubone builds →Earthquake 2x48-57% Dig 2x38-45% Bone Club 2x32-38% Bonemerang 2x25-30% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Muk View Sandshrew builds →Earthquake 2x65-77% Dig 2x52-62% Sand Tomb 2x24-28% | ||
In FireRed & LeafGreen, Claydol's Earthquake hits Muk for 71-84%.
Starmie WaterPsychic | A | |
Recommended Build AbilityNatural Cure ItemLeftovers NatureTimid Moves
Damage vs Muk View Starmie builds →Rapid Spin8-9% Ice Beam20-23% Thunderbolt20-23% Surf30-35% | ||
Claydol GroundPsychic | A | |
Recommended Build AbilityLevitate ItemLeftovers NatureAdamant Moves
Damage vs Muk View Claydol builds →Rapid Spin12-14% Earthquake 2x71-84% Explosion59-69% Psychic 2x33-39% | ||
FireRed & LeafGreen Evolution
Muk is what Grimer becomes. Breed it for Grimer eggs (average hatch time). A decent partner pool 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. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Muk to get Grimer eggs easily using 22 partners from the Indeterminate egg group. Notable egg moves include Curse, Explosion, Haze and 4 more.
FireRed & LeafGreen Muk Best Moveset
Stickyhold helps Muk stick around while dealing real damage. Leftovers for passive recovery each turn, max HP and Attack EVs for the right balance, and Sludge Bomb as the main threat. Not the fastest, but it doesn't need to be.
Best Build
Muk best EVs are HP and Attack
Physical Tank Moveset
- Sludge Bomb
- Explosion
- Curse
- Focus Punch
Recommended Teammates
Moves
Don't skip the egg moves. Muk picks up Curse and Explosion only through breeding, and both fill gaps the natural movepool can't. STAB runs through Sludge Bomb and Sludge while coverage across 9 types adds range.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Muk in FireRed & LeafGreen
moderate rates across 2 encounter spots for Muk. That's the kind of hunt where you pick one location and settle in. Sort by Best below to see where the odds are highest.
Where To Catch Muk in FireRed & LeafGreen
The path to Muk starts with Grimer at Lv. 28-40 via walking and fishing encounters. 2 catchable stages total, with locations listed for each one below.
Step 1Catch GrimerPokémon Mansion - 1F/2F/3FLeafGreenGrass Lv.28-30 BuildingCommonMidPokémon Mansion - B1FLeafGreenGrass Lv.28-30 BuildingCommonMidPokémon Mansion - 1F/2F/3FFireRedGrass Lv.28 BuildingRareMidPokémon Mansion - B1FFireRedGrass Lv.28 BuildingRareMidCeladon CityFireRedSuper Rod Lv.30-40 City1%MidCeladon CityLeafGreenSuper Rod Lv.30-40 City1%Mid
Step 2Muk ✓Pokémon Mansion - 1F/2F/3FGrass Lv.32 BuildingRareLatePokémon Mansion - B1FGrass Lv.34 BuildingRareLateor evolve from Grimer (Step 1)
Muk Guide
In FireRed & LeafGreen, Muk works as a tank with 500 BST behind it. C-Tier on our list: a niche pick in FireRed & LeafGreen's meta. Sludge Bomb with Leftovers is the standard set.
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. Speed tells the real story. Base 50 Speed is low. Priority moves or Trick Room are the way to go. Fits the tank role.
For FireRed & LeafGreen, Muk has answers, but so do you. Status moves (Toxic, Will-O-Wisp) wear it down. Setup sweepers can use it as a boost opportunity. Special attackers bypass its physical bulk.
Game Availability
Available since Red & Blue, Muk appears in 19 games spanning 10 generations. Beyond its original form, it gained an Alolan form in Generation 7.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RBDebut

Red & Blue - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RS

Ruby & Sapphire - Gen 3FRLG

FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 4DP

Diamond & Pearl - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7SMAlolan

Sun & Moon - Gen 7LGPE

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves
