13 printings of War Mammoth
They range from $0.09 to $38.00 — a 422× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Summer Magic / Edgar | SUM 228 | — |
| Rivals Quick Start Set | RQS 44 | — |
| 30th Anniversary Edition | 30A 520 | $38.00 |
| Limited Edition Alpha | LEA 227 | $38.00 |
| Introductory Two-Player Set | ITP 45 | $30.00 |
| Limited Edition Beta | LEB 228 | $6.87 |
| Collectors' Edition | CED 228 | $2.00 |
| Intl. Collectors' Edition | CEI 228 | $0.68 |
| Unlimited Edition | 2ED 228 | $0.66 |
| Fifth Edition | 5ED 340 | $0.19 |
| Revised Edition | 3ED 228 | $0.17 |
| Fourth Edition | 4ED 286 | $0.09 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.