Muk, The Sludge Pokémon. Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison. It is usually undetectable because it blends in with the ground. Touching it can cause terrible poisoning. It prefers warm and humid habitats. In the summertime, the toxic substances in its body intensify, making it reek like putrid kitchen garbage. It'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. From it's body seeps a foul fluid that gives off a nose-bendingly horrible stench. Just one drop of it's body fluid can turn a pool stagnant and rancid.

Battle Moveset

A Good Moveset for Muk would have to be this:


Focus Punch
Sludge Bomb / Hidden Power [Ghost] / Fire Blast
Sludge Bomb / Hidden Power [Ghost] / Fire Blast

Items Attached:


Preferred Nature:


Strategy Using Muk

Muk makes an ideal Sub-Puncher and UU special wall. 101 Substitutes allow Substitute to block Night Shade or Seismic Toss. Sludge Bomb provides STAB and power but due to being a poor offensive type it isn't a necessity. HP Ghost (or Shadow Punch as a non-Hidden power alterative) can take out Ghosts and Fire Blast takes out Steel types, both being common switch ins to block Sludge Bomb.

Sticky Hold is a poor trait but the alterative isn't any better so immunity to item removal is the best it has. It gives Muk the power to block Knock Off and Thief but both usually come as a surprise anyway.

EV Corner:

EVs: 212 HP / 242 Atk / 56 SAtk
Brave Nature (+Atk, -Spd)

404 HP for 101 Subs and 180 Special Attack for enough Special attack to 2KO Skarmory. The rest can just be thrown into Attack and Special Defence as well as some optional Physical Attack to take Choice Band boosted Fighting attacks.

Other Optional Sets:

Muk @ Choice Band
Trait: Sticky Hold
EVs: 200 HP / 252 Atk / 58 SDef
Adamant Nature (+Atk, -SAtk)
- Sludge Bomb
- Explosion
- Focus Punch
- Hidden Power [Ghost]

CB Muk. A good physical move pool and the defensive stats to switch in easily on non-Psychic types make Muk an effective UU Choice Bander. Fire Blast with some special attack support is an option for using Muk in OU. Muk @ Leftovers
Trait: Sticky Hold
EVs: 252 HP / 106 Def / 152 SDef
Careful Nature (+SDef, -SAtk)
- Sludge Bomb
- Curse
- Explosion / Rest
- Hidden Power [Ghost] / Brick Break

A Curse-Tank version of Muk. After one Curse Muk is durable against most physical offence, except for Earthquake which is unfortunately too common to make this set a standard. Psychic is also a common move that causes many problems for a tanking Muk. Curse-Boom can be very effective when timed properly but Rest is an option for someone trying to make Muk a tank. HP Ghost and Break are options to help cover Sludge Bomb's resistances.

Other Optional Moves

Taunt, Giga Drain, Thunder, Haze, Mean Look, Acid Armor, Torment, Imprison. Taunt is a cool move that could stop Muk from being PHazed after being passed stat boosts or on the Curse set but is difficult to place on a Muk set. Giga Drain helps overcome problems with Swampert, Golem and other resisters of Fire Blast and Sludge Bomb. Thunder is an option over Fire Blast and comes with added paralysis chance. Haze and Mean Looks are generally good moves that don't suit Muk's other moves. Acid Armor is an option for a tanker Muk but Curse is generally better. Torment is just a cool move but usually too situational to be worth a move slot. Imprison could have some power in 2v2 for locking out Hidden Power but Dusclops is better at that job.

Strategy Against Muk

Sludge Bomb is a staple Muk move so resisters of that automatically be become viable Muk counters. It's supportive moves shorten the list of viable counters, Ghost types (except Dusclops) don't fair well against Hidden Power Ghost and most Steel types can't handle Fire Blast due to weak Special Defence (Registeel, Jirachi and a Metagross with some Special Defence are the only Steel types that could handle a few Fire Blasts). Swampert makes for a viable counter as well as most other Rock types provided Giga Drain (and Focus Punch in the case of Rock types) are absent. Weezing and most other Poison types can counter Muk if they have some moves to handle it. Milotic and Pokémon with the Guts trait can take advantage of the high Poison chance that comes with Sludge Bomb. Other than that with correct prediction most Pokémon with Earthquake can come into it and force it out of play.

Contest Moveset

A good Contest Moveset for Muk would have to be this for the Beauty Contest best with Modest, Mild, Rash or Quiet Nature:


Sunny day

Items Attached:

Blue Scarf

Strategy Using Muk

If you do the attacks in this following order you should have very few problems; 1st - Sunny day, 2nd - Flamethrower, 3rd - Sludge/Sunny day, 4th - Flamethrower, 5th - Explosion

Locations in Games


Evolve Grimer


Trade from RSEFRLGXD (Col.), Evolve Grimer (XD)

Fire Red/Leaf Green

Evolve Grimer

Animé Appearences

Muk has had a fair few Animé Appearences. First it led a group of Grimers to damage a Power Plant, however Ash managed to capture it. Almost all subsequent appearences were of Ash's Muk, either of it at Oak's Lab or of it in Battle such as at the Indigo & Johto Leagues. Also Atilla of Team Rocket used one to try and stop Jimmy from protecting Raikou

Episode 030: Sparks Fly For Magnemite!
Episode 050: Who Gets To Keep Togepi?
Episode 067: Showdown at the Poké-Corral!
Episode 079: Fourth Round Rumble!
Episode 087: Fit To Be Tide!
Episode 090: In The Pink!
Episode 104: The Mystery Menace!
Episode 117: A Tents Situation!
Episode 138: Chikorita's Big Upset!
Episode 149: A Fire-ring Squad!
Chronicles 001-003: Legend of Thunder!
Episode 272: Can't Beat The Heat!
Chronicles 008: Showdown at the Oak Corral!
Chronicles 014: Journey From The Starting Line!
Episode 410: Oak's Laboratory! All Members Gather!

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