7 printings of Kiln Fiend
They range from $0.10 to $0.28 — 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.
| Rise of the Eldrazi | ROE 153 | $0.28 |
| Jumpstart | JMP 338 | $0.20 |
| Duel Decks: Izzet vs. Golgari | DDJ 2 | $0.17 |
| Iconic Masters | IMA 137 | $0.14 |
| The List | PLST IMA-137 | $0.13 |
| Conspiracy: Take the Crown | CN2 167 | $0.10 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.