4 printings of Perilous Research
They range from $0.27 to $1.04 — 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.
| Coldsnap | CSP 41 | $1.04 |
| Modern Masters | MMA 58 | $0.83 |
| The List | PLST MMA-58 | $0.27 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.