Muk Fossil #13
Muk is a Rare Holo Pokémon card from Fossil (#13), illustrated by Mitsuhiro Arita. It's a Stage 1 Grass-type Pokémon with 70 HP, evolving from Grimer, weak to Psychic ×2. Its current blended market value is $50.87 ungraded, with a PSA 10 worth around $492 — a gem-mint grading premium of roughly 10× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 2 July 2026.
Price by variant
TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.
| Grade | Relative value | Price |
|---|---|---|
| PSA 10 | 3 sold$492$418–$566 | |
| PSA 9 | 16 sold$130$110–$149 | |
| PSA 8.5 | $115$88–$115 | |
| PSA 8 | 17 sold$43$37–$50 | |
| PSA 7 | 8 sold$39$33–$44 | |
| PSA 6 | 5 sold$27$23–$31 | |
| PSA 5 | 3 sold$22$19–$26 | |
| PSA 4 | $13$10–$17 |
Price history · raw near-mint
Recent sold prices
Real completed sale prices from Fanatics Collect — weekly and premier auctions plus marketplace Buy It Now sales, refreshed periodically. Grade read from the listing title.
Population across graders
Should you grade it?
after ~$74.91 grading fee → 9.7× the raw value
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $492.00 | $74.91 | +$366 | 9.7× |
| PSA 9 | $129.91 | $71.29 | +$8 | 2.6× |
| PSA 8.5 | $114.87 | $71.14 | −$7 | 2.3× |
| PSA 8 | $43.38 | $70.42 | −$78 | 0.9× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 3,681 PSA-graded copies:
| Likely outcome | Chance | Value |
|---|---|---|
| PSA 10 | 13.3% | $492.00 |
| PSA 9 | 43.9% | $130.00 |
| PSA ≤8 | 42.8% | $51.00 |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.
We'll email you when this card's value crosses your target.
Where to buy
Cross-market prices
45% spreadCurrently 45% cheaper on PriceCharting than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
Card text
Evolves from Grimer.
“Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.”
About the Pokémon
Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.
Card details
Other Muk cards
There are 9 different Muk printings — make sure you're valuing the right one. This is Fossil #13 (Rare Holo).
More from Fossil
Frequently asked questions
How much is Muk (Fossil #13) worth?
As of 2 July 2026, Muk from Fossil is worth approximately $50.87 ungraded (near-mint), and around $492 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Muk?
A PSA 10 (gem mint) Muk from Fossil is worth around $492 — roughly 10× the raw ungraded value of $50.87.
Should I grade my Muk?
A PSA 10 sells for about $492 versus $50.87 raw — roughly a 10× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.
Is Muk rare?
Muk is a Rare Holo card from Fossil (card #13), illustrated by Mitsuhiro Arita. Its current blended market value is $50.87 ungraded.