Cheapest priced copy (Time Spiral Remastered): $0.39 at Card Kingdom, near mint, their price list as of .
Sliversmith 
Artifact Creature — Spellshaper · 1/1 · Uncommon · Time Spiral Remastered · #273
{1}, {T}, Discard a card: Create a 1/1 colorless Sliver artifact creature token named Metallic Sliver.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.39 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Future Sight | 163 | Uncommon | $0.49 | $4.99 |
| Time Spiral Remastered | 273 | Uncommon | $0.39 | $0.99 |
One ruling from Wizards of the Coast
- 19 March 2021Unlike the card Metallic Sliver, the token has no mana cost. Its mana value is 0.