6 printings of Bull Hippo
They range from $0.19 to $0.59 — a 3× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Seventh Edition | 7ED 233★ | — |
| Portal | POR 160d | $0.59 |
| Urza's Saga | USG 239 | $0.24 |
| Starter 1999 | S99 126 | $0.19 |
| Seventh Edition | 7ED 233 | $0.19 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.