3 printings of Obelisk of Undoing
They range from $0.36 to $16.77 — a 47× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Antiquities | ATQ 58 | $16.77 |
| Chronicles | CHR 104 | $0.36 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.