Muk

Muk (101/189), the Rare from Darkness Ablaze, has an estimated ungraded market price of about under $1. Note: 15 other cards named Muk exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Muk (101/189), the Rare (about under $1) from Darkness Ablaze.

The other versions: #H17/147 from Aquapolis (Rare, about $220–$300); #16/110 from Legendary Collection (Rare, about $75–$100); #13/62 from Fossil (Rare, about $45–$60); #11/92 from Legend Maker (Rare, about $34–$44); #23/147 from Aquapolis (Rare, about $33–$43); #56/132 from Secret Wonders (Uncommon, about $13–$18); #28/62 from Fossil (Rare, about $12–$17); #46/116 from Plasma Freeze (Rare, about $12–$16); #31/90 from Undaunted (Uncommon, about $6–$8); #57/127 from Platinum (Uncommon, about $4–$5); #53/99 from Next Destinies (Rare, about $2–$3); #63/181 from Team Up (Rare, about $0.80–$1); #085/172 from Brilliant Stars (Rare, about under $1); #089/165 from 151 (Uncommon, about under $1); #127/198 from Scarlet & Violet (Uncommon, about under $1).

The collector number printed at the bottom of the card is the reliable way to tell them apart.