4 printings of Rain of Thorns
They range from $0.13 to $0.35 — a 3× 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 C17-156 | $0.35 |
| Avacyn Restored | AVR 190 | $0.16 |
| Commander 2013 | C13 163 | $0.13 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.