Dark Muk

As long as Dark Muk is your Active Pokémon, your opponent pays ColorlessColorless more to retreat his or her Active Pokémon.

Slimy Water

10×

Does 10 damage times the number of Colorless Energy in the Defending Pokémon's Retreat Cost (after applying effects to the Retreat Cost).

Acidic Poison

10

The Defending Pokémon is now Burned and Poisoned.