Cheapest priced copy (Edge of Eternities): $0.49 at Card Kingdom, near mint, their price list as of .
Cryogen Relic 
Artifact · Common · The List · #EOE-52
When this artifact enters or leaves the battlefield, draw a card.
{1}{U}, Sacrifice this artifact: Put a stun counter on up to one target tapped creature. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
2 printings · $0.49 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 52 | Common | $0.49 | $1.49 |
| The List | EOE-52 | Common | — | — |