5 printings of Desolation Twin
They range from $0.40 to $1.03 — 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.
| Battle for Zendikar Promos | PBFZ 6s | — |
| Commander 2019 | C19 60 | $1.03 |
| Commander 2021 | C21 82 | $0.84 |
| Battle for Zendikar | BFZ 6 | $0.40 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.