Muk is a Stage 1 Psychic-type Pokémon with 100 HP. It is illustrated by artist Midori Harada and is part of the HS—Undaunted set from the HeartGold &…
Set: HS—Undaunted
Number: 31/90
Rarity: Uncommon
Set
About the Muk Pokémon Card
Muk is a Psychic-type Pokémon card with 100 HP from the HS—Undaunted set, part of the HeartGold & SoulSilver series. It carries the collector number 31/90 and is classified as Uncommon. The HS—Undaunted set was released on August 18, 2010.
The card includes the flavor text: “Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.”.
Muk Pokémon Card Details
Card name: Muk
Card number: 31/90
Set: HS—Undaunted
Series: HeartGold & SoulSilver
Rarity: Uncommon
Subtypes: Stage 1
Type: Psychic
HP: 100
Artist: Midori Harada
Release date: August 18, 2010
National Pokédex number: 89
Why Collect the Muk Pokémon Card?
Muk is most often collected as part of a complete HS—Undaunted set rather than as a standalone chase card.
Across the hobby, collectibility generally comes down to rarity, condition, artwork, and overall demand for the set.
Artwork and Illustration of the Muk Pokémon Card
Muk was illustrated by Midori Harada.
Artwork is one of the factors collectors weigh when deciding which copies to keep or send for grading.
Market Price and Value of the Muk Pokémon Card
The current aggregated market price for Muk is about $5.66. Recent listings range from roughly
.69 (low) to $77.70 (high), with a mid-point near $3.59. These figures are aggregated from marketplace data and change over time; the live price and full price history are shown above on this page.
For context, the HS—Undaunted set has a median card value near $8.76 and an average near $38.79, so this card sits below the typical card in the set. The aggregated price has moved -44% over the last 7 days and -55% over 30 days.
Pokémon cards are best collected for enjoyment first. Where value matters, it is typically driven by graded population, the popularity of the HS—Undaunted set, the availability of sealed product, and broader Pokémon TCG market trends.
Grading the Muk Pokémon Card
Whether Muk is worth grading comes down to condition. Before submitting a card, collectors usually check front and back centring, corner sharpness, edge wear, surface defects, and any print lines or factory imperfections.
Across the hobby, top grades such as PSA 10, BGS/Beckett 9.5–10, and CGC Pristine 10 generally command a premium over raw or lower-graded copies.
How Rare Is the Muk Pokémon Card?
As an Uncommon card, Muk sits just above commons in print frequency and appears regularly in booster packs.
Other Printings of Muk
Muk appears on more than one card across the catalog. Other printings include Aquapolis H17 (around 62), Legendary Collection 16 (around $87.99) and Fossil 13 (around $50.54).
These are distinct cards rather than a single listing; compare the set, collector number, and rarity when identifying a specific copy.
Final Thoughts on the Muk Pokémon Card
The Muk pokémon card is a Uncommon card from the HS—Undaunted set (HeartGold & SoulSilver series). It is a straightforward addition for collectors completing the HS—Undaunted set. Its current aggregated market price is about $5.66; the live figure and full price history appear above on this page.
Frequently asked questions
What set is the Muk card from?
Muk is from the HS—Undaunted set (HeartGold & SoulSilver series), numbered 31/90 with the Uncommon rarity.
What rarity is the Muk card?
Muk is classified as Uncommon.
How much is the Muk 31/90 card worth?
The current aggregated market price is about $5.66, within a recent range of roughly
.69 to $77.70. The live figure and full price history appear above on this page.
Is the Muk card worth grading?
It can be, if the card is well-centred and free of noticeable edge, corner, or surface flaws. Top grades typically command a premium over raw copies.
How rare is the Muk card?
As an Uncommon card, Muk sits just above commons in print frequency and appears regularly in booster packs.
When was the HS—Undaunted set released?
The HS—Undaunted set was released on August 18, 2010.
Are there other printings of Muk?
Yes. Muk appears on 20 other cards across the catalog. Compare the set, collector number, and rarity to identify a specific copy.
