9 printings of Tremor
They range from $0.12 to $0.32 — 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 225★ | — |
| Eighth Edition | 8ED 228★ | — |
| Portal Second Age | P02 118 | $0.32 |
| Starter 1999 | S99 121 | $0.24 |
| Classic Sixth Edition | 6ED 211 | $0.22 |
| Visions | VIS 99 | $0.17 |
| Mercadian Masques | MMQ 220 | $0.17 |
| Seventh Edition | 7ED 225 | $0.12 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.