8 printings of Wildheart Invoker
They range from $0.04 to $0.28 — 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.
| The List | PLST DDU-26 | — |
| Duel Decks: Elves vs. Inventors | DDU 26 | $0.28 |
| Commander Legends | CMR 263 | $0.15 |
| Foundations | FDN 561 | $0.13 |
| Duel Decks: Zendikar vs. Eldrazi | DDP 26 | $0.13 |
| Rise of the Eldrazi | ROE 213 | $0.06 |
| Masters 25 | A25 194 | $0.04 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.