Description, catalog fields, rules text, and how it plays—in one place.
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Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.
Abilities, attacks, weakness & resistance
Switch the Defending Pokémon with 1 of your opponent's Benched Pokémon. The new Defending Pokémon is now Confused and Poisoned.
If the Defending Pokémon is affected by a Special Condition, this attack does 50 damage plus 30 more damage.
Other cards from HS—Undaunted
Rayquaza & Deoxys LEGEND (Holofoil)
Rayquaza & Deoxys LEGEND (David Cohen)
Rayquaza & Deoxys LEGEND (Holofoil)
Rayquaza & Deoxys LEGEND (David Cohen)
Kyogre & Groudon LEGEND (Holofoil)
Kyogre & Groudon LEGEND (Holofoil)
Umbreon (Holofoil)
Slowking (Holofoil)
Scizor (Holofoil)
Raichu (Holofoil)
Houndoom (Holofoil)
Espeon (Holofoil)
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Muk (hgss3-31 Reverse Holofoil) is an Uncommon Stage 1 Psychic Pokémon from the HS—Undaunted set. It has Sludge Drag, which forces the opponent to switch their Active with a Benched Pokémon and leaves the new Active Confused and Poisoned, and Pester, which deals extra damage if the Defending Pokémon has a Special Condition. Its high retreat cost and Psychic weakness influence list and bench management decisions in deck construction.
Catalog pricing data as of 16 Apr 2026, 13:51