12 printings of Chain Lightning
They range from $0.26 to $19.97 — a 77× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Amonkhet Invocations | MP2 26 | — |
| Secret Lair Drop | SLD 2052 | — |
| Premium Deck Series: Fire and Lightning | PD2 16 | — |
| Secret Lair Drop | SLD 370 | $19.97 |
| Legends | LEG 137 | $10.88 |
| Secret Lair Drop | SLD 2047 | $2.57 |
| Eternal Masters | EMA 123 | $0.38 |
| Battlebond | BBD 171 | $0.36 |
| Dominaria Remastered | DMR 113 | $0.33 |
| Mystery Booster 2 | MB2 55 | $0.28 |
| Dominaria Remastered | DMR 316 | $0.26 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.