5 printings of Transguild Promenade
They range from $0.10 to $0.55 — a 6× 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 Anthology | CMA 280 | $0.55 |
| Commander Legends | CMR 499 | $0.32 |
| Return to Ravnica | RTR 249 | $0.24 |
| Commander 2013 | C13 330 | $0.10 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.