For Koga's Muk in Gym Challenge, the current reference price is $14.77. Price action is stable over 7 days, moving only 0.0%.
Relative to the last 30 days, value is near baseline at $14.61. In the past 90 days, observed prices ranged from $13.40 to $14.77 (9% spread), a low-volatility profile.
The listed rarity for this print is Rare.
Market structure summary: Weekly drift is minimal (0.0%), indicating a relatively balanced short-term market. With a 9% 90-day spread ($13.40-$14.77), this card currently tracks as low-volatility.
Relative to the 30-day baseline ($14.61), pricing is near equilibrium. Condition sensitivity is substantial: PSA 10 carries a +209% premium over raw value.
PSA 9 is currently around $34.98, while PSA 10 is $45.61.
Koga's Muk appears in Gym Challenge, released in 2000. Core profile: Its card type is Pokémon.
The rarity label is Rare. Printed HP is 80.
Energy typing is Grass. This card evolves from Koga's Grimer.
Printed ability include "Energy Drain". Attack line includes "Sludge Whirlpool".
Release year for Gym Challenge is 2000. Gym Challenge is grouped under the Gym era.
With 132 listed cards, this is a mid-size set by modern TCG standards. As of 2026, the set is 26 years old and fits a legacy-era profile.
Koga's Muk (#26) is one of the Rare prints in this expansion.