9 printings of Fiery Confluence
They range from $0.30 to $1.28 — a 4× 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 Lost Caverns of Ixalan Commander | LCC 226 | $1.28 |
| Commander Masters | CMM 222 | $1.10 |
| March of the Machine Commander | MOC 278 | $1.04 |
| Commander 2015 | C15 26 | $0.93 |
| Commander Anthology Volume II | CM2 98 | $0.73 |
| Avatar: The Last Airbender Eternal | TLE 165 | $0.51 |
| Signature Spellbook: Chandra | SS3 3 | $0.48 |
| Starter Commander Decks | SCD 141 | $0.30 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.