Muk

Muk (ベトベトン Betbeton) is a -Type Pokémon, and is the evolved form of Grimer.

Appearance
Muk is a large mass of sludge, toxic fluids, and other filthy materials. It has two large arms that can capture prey. It's name, backwards, is Kum. It can be said in America as Cum.

Special Abilities
Muk can have the ability Stench or the ability Sticky Hold. Stench decreases the chances of encountering a wild Pokémon when Muk is the first party Pokémon. Sticky Hold prevents the theft of Muk's held item. A toxic fluid seeps from its body, which can instantly kill plants or trees on contact. Muk has one of the highest attack points of all -type Pokémon, losing only to Toxicroak.

Anime
In the anime, Ash has a Muk after he caught it to restore the power of a town. He later used it to battle a Bellsprout used by a trainer called Jeanette and was able to beat it thanks to Muk being able to absorb all of Bellsprout's attacks, finally finishing it with a Body Slam.

Locations in Game
To get one in Red and Blue, it can be found in the Pokémon Mansion.

To get one in Yellow, it can be found in the Pokémon Mansion and the Power Plant.

To get one in Gold, Silver, and Crystal, it can be found on routes 16, 17, 18, and Celadon City.

To get one in Ruby, Sapphire, Emerald, FireRed, XD, Diamond, Pearl, and Platinum, it has to be evolved from a Grimer.

To get one in LeafGreen, it can be found in the Pokémon Mansion.

To get one in Colosseum, it has to be traded from Ruby, Sapphire, Emerald, FireRed, LeafGreen, and XD.

In Pokémon Ranger, its location will be at the Waterworks.

In Pokémon Ranger: Shadows of Almia, its location is at Volcano Cave.