Cheapest priced copy (Commander 2018): $0.79 at Card Kingdom, near mint, their price list as of .
Worn Powerstone 
Artifact · Uncommon · Urza's Saga · #318
This artifact enters tapped.
{T}: Add {C}{C}.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
19 printings · $0.79 to $13.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Warhammer 40,000 Commander | 263 | Uncommon | $0.99 | — |
| Warhammer 40,000 Commander | 263★ | Uncommon | — | — |
| Commander 2014 | 282 | Uncommon | $1.29 | — |
| Commander 2015 | 275 | Uncommon | $1.29 | — |
| Commander 2017 | 232 | Uncommon | $0.99 | — |
| Commander 2018 | 230 | Uncommon | $0.79 | — |
| Commander Anthology Volume II | 230 | Uncommon | $1.29 | — |
| Commander Masters | 984 | Uncommon | $0.99 | — |
| Duel Decks: Phyrexia vs. the Coalition | 24 | Uncommon | $0.99 | — |
| Eternal Masters | 235 | Uncommon | $1.29 | $1.99 |
| The Lost Caverns of Ixalan Commander | 120 | Uncommon | $4.49 | $13.99 |
| Tales of Middle-earth Commander | 293 | Uncommon | $0.99 | — |
| Modern Horizons 3 | 298 | Uncommon | $0.79 | $0.99 |
| The List | USG-318 | Uncommon | $0.79 | — |
| Media and Collaboration Promos | 2023-2 | Rare | — | — |
| Media and Collaboration Promos | 2026-21 | Rare | — | — |
| Starter Commander Decks | 288 | Uncommon | $1.29 | — |
| Urza's Saga | 318 | Uncommon | $2.29 | — |
| World Championship Decks 1999 | kb318 | Uncommon | $1.29 | — |