5 printings of Dryad Militant
They range from $0.11 to $0.88 — a 8× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| The List | PLST PRTR-214 | $0.88 |
| Return to Ravnica Promos | PRTR 214 | $0.55 |
| Return to Ravnica | RTR 214 | $0.17 |
| Foundations | FDN 656 | $0.11 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.