9 printings of Sea Monster
They range from $0.03 to $0.20 — a 7× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Eighth Edition | 8ED 99★ | — |
| Ninth Edition | 9ED 96★ | — |
| Seventh Edition | 7ED 97★ | — |
| Classic Sixth Edition | 6ED 96 | $0.20 |
| Tenth Edition | 10E 106 | $0.14 |
| Tempest | TMP 85 | $0.08 |
| Ninth Edition | 9ED 96 | $0.08 |
| Eighth Edition | 8ED 99 | $0.03 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.