9 printings of Mortivore
They range from $0.32 to $2.89 — a 9× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Ninth Edition | 9ED 147★ | — |
| Odyssey | ODY 152 | $2.89 |
| Duels of the Planeswalkers | DPA 30 | $1.22 |
| Tenth Edition | 10E 161 | $1.13 |
| Ninth Edition | 9ED 147 | $0.74 |
| Commander 2011 | CMD 89 | $0.49 |
| Commander Anthology Volume II | CM2 69 | $0.47 |
| Modern Horizons 3 Commander | M3C 201 | $0.32 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.