3 printings of Kuldotha Flamefiend
They range from $0.06 to $0.25 — 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.
| Double Masters | 2XM 134 | $0.25 |
| Mirrodin Besieged | MBS 69 | $0.06 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.