A Stage 1 Pokemon Card of type Psychic with the title Muk and 80 HP of rarity Uncommon evolved from Grimer from the set Secret Wonders and the flavor text: A toxic fluids seeps from its body. The fluid instantly kills plants and trees on contact. It has the attack Panic Liquid with the cost Psychic, Psychic, Colorless, the energy cost 3 and the damage of 50 with the description: The Defending Pokemon is now Confused and can't retreat during your opponent's next turn. It has the ability Toxic Sludge with the description: At the end of each player's turn, each of your opponent's Active Pokemon that has any Grass Energy attached to it is now Poisoned. If that Pokemon is already Poisoned, Toxic Sludge Poke-Body does nothing to that Pokemon. It has weakness against Psychic +20. 
Muk