Cheapest priced copy (Ice Age): $0.35 at Card Kingdom, near mint, their price list as of .
Onyx Talisman 
Artifact · Uncommon · Ice Age · #331
Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ice Age | 331 | Uncommon | $0.35 | — |