01Card Stats

Stage 1 (evolves from Grimer)

HP 70

TypeGrass

RarityRare

IllustratorHajime Kusajima

WeaknessPsychic ×2

Retreat●

SetAquapolis

Released2003

02Editions and Print Runs

Modern print era — no 1st Edition or Shadowless variants exist for cards printed after the WotC era.

Unlimited

How to spot it: Standard modern card frame; no edition stamp.

All copies share the same Unlimited print frame.

04Variants and Foiling

Rarity tiers: Rare
Foiling: Non-holo standard finish. Reverse-holo parallel exists with the holo pattern applied to the background.
Alt art / specials: No full-art, secret rare, or alternate-art version documented for this print.

05Language and Regional Versions

English: Standard English release.
Japanese: Released in the equivalent Japanese set.
European: Localized European prints exist with translated text.
Other: No documented language-exclusive errors or major regional variants.

06Current Market Value

Non Holo	~$15 raw for the base card; verify current listings.
Reverse Holo	~$35 raw · PSA 10 ~$148 (PriceCharting realized, May 2026)

The reverse-holo parallel is the value driver on this card.

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07Why Collectors Want It

Early-2000s Aquapolis printing with vintage collector appeal.
Final evolution of the Grimer → Muk line — home to the Fossil holo and Dark Muk prints.
Required for any complete Muk master set across eras.
Collectors of the Aquapolis set need this card to finish it.

08Competitive Playability

Tier: None

Stage 1 Muk with 70 HP; top attack around 10 damage. Functions as an evolution-chain piece rather than a tournament attacker.

09Card Moves and Abilities

Ability: Heavyweight

As long as there is a Grass Energy attached to Muk, you must pay an additional ColorlessColorless to retreat it.

Burning Sludge Cost: Colorless + Colorless · 10 damage

Flip a number of coins equal to the amount of Grass Energy attached to Muk. If any of them are heads, the Defending Pokémon is now Poisoned and Burned.

Weakness: Psychic ×2
Retreat cost: 1

10Grading and Population

PSA 10 estimate: Modern Common/Uncommon — most copies are not graded because raw value rarely justifies the fee.

Graded populations stay low; usually collected raw or sleeved rather than slabbed.

Other graders: Negligible BGS/CGC submission volume.

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