Pokémon · Single card

Koga's Muk

Gym Challenge · Gym

GrassPokémonStage 1

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Number

26/132

Rarity

Rare

HitBinder Price

~£14.05

Estimate · ungraded

PSA 10

~£151.35

graded · Low

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Price by condition

£14.05

£10.68

£7.28

£5.34

£3.88

NM is the HitBinder Price; the rest use real per-condition ratios from our price archive.

Price history

▲ 13.9%

2026-04-30low £8.00 · high £9.26£9.11

— — PSA 10 shown on its own scale (a slab often trades many times raw).

Grade analysis

354 graded by PSA · 37.6% gem rate

PSA 10

133 · 37.6%

£151.4

PSA 9

150 · 42.4%

£35.7

PSA 8

56 · 15.8%

£27.8

PSA 7

9 · 2.5%

£15.8

PSA 10 uplift

10.8×

Gem rate

37.6%

Net if it 10s

£112.3

Population and per-grade prices from our price archive · printing: first Edition. “Net if it 10s” assumes a ~£25 grading cost and is not a guarantee — the gem rate is the odds it actually grades a 10.

PSA 10 by printing

Vintage printings grade very differently — check which one you hold.

Printing	PSA 10	Pop	Gem rate
1st Ed.	~£151.35	133	37.6%
Unlimited	~£50.98	34	29.6%

The HitBinder Price is our trust-weighted estimate (archive blend), shown in your chosen display currency (switch it top-right); PSA 10 reflects recent graded sales. Indicative, not quotes — condition, grading and printing variance apply.

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Price trend

▼ 49.6% · 12 wks

Card details

HP 80Evolves from Koga's GrimerRetreat 3Weakness Psychic ×2

Pokémon Power · Energy Drain

If 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 Whirlpool

Illustrated by Ken Sugimori

Gym Challenge

Gym · 132 cards · 2000-10-16

Card analytics

Market snapshot

Supply & demand

0for sale

0wanting

No members selling or wanting this yet.

Share of set value

0.6%

£14.05 of £2,314.79 across the whole set.

Value rank in set

#25/ 132 priced

Ahead of 107 priced cards in the set.

Price stats

12 weekly snapshots

Low

£14.03

Average

£23.47

High

£28.49

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