Cheapest priced copy (Battlebond): $4.49 at Card Kingdom, near mint, their price list as of .
Genesis Chamber 
Artifact · Uncommon · Darksteel · #122
Whenever a nontoken creature enters, if this artifact is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $4.49 to $14.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battlebond | 235 | Uncommon | $4.49 | $8.99 |
| Darksteel | 122 | Uncommon | $5.49 | $14.99 |
| Secret Lair Drop (Play Pals Factory) | 1811 | Rare | $5.99 | $6.99 |