Koga's Muk 26/132
Pokemon card from Gym Challenge · released Oct 16, 2000
Koga's Muk is a Rare Grass-type Stage 1 Pokemon card, number 26/132 in Gym Challenge (released Oct 16, 2000), illustrated by Ken Sugimori. Its TCGplayer market price was ~$16.15 for the 1st edition finish on Oct 30, 2026. Between Oct 1 and Oct 30, 2026, its 1st Edition TCGplayer market price went from ~$16.76 to ~$16.15, down 3.6%.
Prices by finish
| Finish | PriceMarket price | Low | Mid | Buy |
|---|---|---|---|---|
| 1st Edition | ~$16.15 | ~$12.18 | ~$15.05 | CardNexuseBayBuy 1st Edition on TCGplayer (opens in a new tab)Search eBaySearch AmazonCardNexus |
| Unlimited | ~$12.03 | ~$6.99 | ~$11.00 | CardNexuseBayBuy Unlimited on TCGplayer (opens in a new tab)Search eBaySearch AmazonCardNexus |
TCGplayer market prices per finish, as of Oct 30, 2026. A guide, not an appraisal; condition and grading change real-world value. Buy links are affiliate links.
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Sealed Gym Challenge products
TCGplayer market prices (via TCGCSV), Oct 30, 2026.
![Gym Challenge Booster Box [1st Edition]](https://static.pokemoncardlist.net/images/cards/sealed-276588.avif)
![Gym Challenge Booster Box [Unlimited Edition]](https://static.pokemoncardlist.net/images/cards/sealed-285314.avif)
![Gym Challenge Booster Pack [1st Edition]](https://static.pokemoncardlist.net/images/cards/sealed-138140.avif)
Card details
| Set | Gym Challenge |
| Number | 26/132 |
| Rarity | Rare |
| Type | Grass |
| HP | 80 |
| Stage | Stage 1 — evolves from Grimer |
| Artist | Ken Sugimori |
| Format legality | Not legal in Standard or Expanded |
| Finishes | 1st Edition · Unlimited |
What the codes mean
- Card number26/132Card 26 of the 132 in the main Gym Challenge list.
- Set symbol
The small Gym Challenge symbol identifies the set. Cards from before Scarlet & Violet print a symbol instead of a set code. - Regulation markNo regulation mark. Cards before Sword & Shield (2020) have none.
- RarityRare: a black star.
- Illustrator“Illus. Ken Sugimori” names the artist who made the art.
Attacks & abilities
Pokemon Power: Energy DrainIf an opponent's attack does damage to Koga's Muk (even if Koga's Muk is Knocked Out), flip a coin. If heads and if it has any, choose 1 Energy card attached to the attacking Pokémon and discard it. This power can't be used if Koga's Muk is already Asleep, Confused, or Paralyzed when your opponent attacks.
Sludge Whirlpool40
Weakness: Psychic x2 · Retreat cost: 3
More Gym Challenge cards
All Muk cards · Gym Challenge price list
Card data via TCGdex and pokemontcg.io, updated Oct 31, 2026. Prices: TCGplayer market prices via TCGCSV, Oct 30, 2026.