4 printings of Merchant of Secrets
They range from $0.08 to $0.31 — a 4× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Commander 2017 | C17 87 | $0.31 |
| Legions | LGN 44 | $0.14 |
| Eighth Edition | 8ED 90 | $0.08 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.