4 printings of Exclusion Mage
They range from $0.07 to $0.27 — 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.
| Foundations Jumpstart | J25 306 | $0.27 |
| Foundations | FDN 508 | $0.22 |
| Core Set 2019 | M19 55 | $0.07 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.