31/90 Muk
Card details
- Number
- 31/90
- Series
- HeartGold & SoulSilver
- Expansion
- HS—Undaunted
- Expansion code
- UD
- Rarity
- Uncommon
- Card type
- Stage 1 Pokémon
- Type
- Psychic
- HP
- 100
- Evolves from
- Grimer
- Illustrator
- Midori Harada
- Language
- English
- National Pokédex
- #89
- Printings
- Normal
- Reverse Holofoil
Flavour text
Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.
TCGplayer market · USD · observed 12 October 2026
Normal
- Near Mint
- $0.65
- Lightly Played
- $0.48
- Moderately Played
- $0.34
- Heavily Played
- $0.23
- Damaged
- $0.22
Reverse Holofoil
- Near Mint
- $6.38
- Lightly Played
- $2.89
- Moderately Played
- $2.30
- Heavily Played
- $0.63
- Damaged
- $0.99
Attacks
PsychicSludge Drag
Switch the Defending Pokémon with 1 of your opponent's Benched Pokémon. The new Defending Pokémon is now Confused and Poisoned.
Psychic · Colorless ×2Pester50+
If the Defending Pokémon is affected by a Special Condition, this attack does 50 damage plus 30 more damage.
In play
- Weakness
- Psychic ×2
- Retreat
- Colorless ×3
Tournament legality
- Standard
- Not Legal
- Unlimited
- Legal
- Expanded
- Not Legal
- Gym Leader Challenge
- Not Legal