Muk · Fossil, what to know.
About the Muk card
Muk sits at #13 in Fossil, the third of the Wizards of the Coast print runs. Illustration by Mitsuhiro Arita. Arita was the original Pokémon TCG illustrator and the artist behind the Base Set Charizard. His vintage-era art has a painterly quality that distinguishes it from the cleaner reference-style work of the Sugimori cards. In the games, Muk evolves from Grimer, which makes it a late-stage card in the line.
The flavor text on the card reads: "Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison." Pokédex entries from this era are short and often quirky, written by the original Japanese localization team for a specific stat-block layout that no longer exists in modern cards.
About Muk in the Pokémon world
The fully evolved Grimer. Larger sludge mound. Fossil holo Muk is a quietly underrated card. Its Pokémon Power 'Toxic Gas' was a tournament-defining mechanic in 1999, which means surviving high-grade copies are scarcer than the print run suggests.
Print variants and how to spot them
Fossil shipped in two print waves: 1st Edition (stamped) and Unlimited. There is no Shadowless equivalent for this set, and no widely-recognized error print on the scale of Jungle's No Symbol issue. Variant identification on Fossil is simpler than Base Set, but PSA 10 1st Edition populations are noticeably lower than the Base Set equivalents.
Grading and condition
For graded buyers, the holo window is where most grade points are won or lost. Surface scratches and print misregistration on the foil are common, and centering on Wizards-era holos was inconsistent enough that PSA 10s remain genuinely scarce a quarter century later. The PSA 9 to PSA 10 price gap on this kind of card is wide enough that pre-grading inspection under a loupe is well worth the time.
If you are buying this card
If you are buying this card, the order of operations is variant first, then condition. Verify the print variant (1st Edition stamp visible, drop shadow on the right edge if Unlimited) before you negotiate on price. For raw purchases above $500, insist on photo or video showing the holo surface under direct light from a 45-degree angle so you can spot hairlines. The "live market price" on this page tracks recent eBay sales, but the actual transaction price will vary by variant, grade, and how recently a comparable sale closed.
