18 printings of Worn Powerstone
They range from $0.32 to $3.04 — a 10× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Warhammer 40,000 Commander | 40K 263★ | — |
| Media and Collaboration Promos | PMEI 2026-21 | — |
| The Lost Caverns of Ixalan Commander | LCC 120 | $3.04 |
| Urza's Saga | USG 318 | $1.45 |
| World Championship Decks 1999 | WC99 kb318 | $0.89 |
| Commander Anthology Volume II | CM2 230 | $0.85 |
| Duel Decks: Phyrexia vs. the Coalition | DDE 24 | $0.82 |
| Warhammer 40,000 Commander | 40K 263 | $0.50 |
| Tales of Middle-earth Commander | LTC 293 | $0.48 |
| Commander Masters | CMM 984 | $0.48 |
| The List | PLST USG-318 | $0.47 |
| Commander 2018 | C18 230 | $0.46 |
| Eternal Masters | EMA 235 | $0.45 |
| Commander 2015 | C15 275 | $0.40 |
| Modern Horizons 3 | MH3 298 | $0.39 |
| Commander 2014 | C14 282 | $0.38 |
| Starter Commander Decks | SCD 288 | $0.32 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.