A Stage 1 Pokemon Card of type Grass with the title Muk and 70 HP of rarity Rare evolved from Grimer from the set Fossil and the flavor text: Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison. It has the attack Sludge with the cost Grass, Grass, Grass, the energy cost 3 and the damage of 30 with the description: Flip a coin. If heads, the Defending Pokemon is now Poisoned. It has the ability Toxic Gas with the description: Ignore all Pokemon Powers other than Toxic Gases. This power stops working while Muk is Asleep, Confused, or Paralyzed. It has weakness against Psychic 2. 
Muk