Ash's Muk (Aura)

Ash's Muk was the tenth Pokémon caught by Ash Calem Ketchum during his travels through Kanto.

Personality and characteristics
Ash's Muk is an extremely happy and affectionate Pokémon. It grew attachments to both Professor Oak and Ash, smothering either of them for a little while. Muk's affection is second in enthusiasm only to Ash's Bayleef. Muk obligingly crushes Ash in excitement whenever he sees Ash. His affection also extends to complete strangers on occasion, including villains.

Muk differs from most of Ash's other Pokémon in that he is a defensive Pokémon. He has never been shown to be damaged by a physical attack, with his opponents' moves always absorbed by his odd body-type.