9 printings of Assassinate
They range from $0.05 to $0.26 — a 5× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Tenth Edition | 10E 128 | $0.26 |
| Battlebond | BBD 139 | $0.14 |
| Planechase Anthology | PCA 30 | $0.13 |
| Magic 2011 | M11 81 | $0.08 |
| Conspiracy | CNS 113 | $0.08 |
| Magic 2010 | M10 84 | $0.06 |
| Time Spiral Remastered | TSR 101 | $0.06 |
| Time Spiral | TSP 95 | $0.05 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.