8 printings of Master Decoy
They range from $0.04 to $0.90 — a 23× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Ninth Edition | 9ED 27★ | — |
| Battle Royale Box Set | BRB 44 | $0.90 |
| Duel Decks: Speed vs. Cunning | DDN 50 | $0.32 |
| The List | PLST TMP-29 | $0.10 |
| Ninth Edition | 9ED 27 | $0.07 |
| Tempest | TMP 29 | $0.07 |
| Eighth Edition | 8ED 29 | $0.04 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.