Cheapest priced copy (Double Masters 2022): $3.49 at Card Kingdom, near mint, their price list as of .
Aether Vial 
Artifact · Rare · Double Masters 2022 · #298
At the beginning of your upkeep, you may put a charge counter on this artifact.
{T}: You may put a creature card with mana value equal to the number of charge counters on this artifact from your hand onto the battlefield.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
13 printings · $3.49 to $149.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters 2022 | 298 | Rare | $3.49 | $4.49 |
| Double Masters 2022 | 391 | Rare | $5.49 | $4.99 |
| Double Masters 2022 | 555 | Rare | — | — |
| Darksteel | 91 | Uncommon | $4.99 | $32.99 |
| Iconic Masters | 212 | Rare | $3.49 | $4.49 |
| Mystery Booster 2 | 216 | Uncommon | $3.49 | $22.99 |
| Modern Masters | 197 | Rare | $4.99 | $7.99 |
| Kaladesh Inventions | 6 | Special | — | $149.99Out of stock |
| The List | DST-91 | Uncommon | $4.99 | — |
| Pro Tour Promos | 2020-3 | Rare | — | — |
| Secret Lair Drop | 1640 | Rare | $13.99 | — |
| Secret Lair Drop | 1640★ | Rare | — | $10.99 |
| From the Vault: Relics | 1 | Mythic | — | $6.49 |
2 rulings from Wizards of the Coast
- 17 November 2017If Aether Vial leaves the battlefield while its second ability is on the stack, use its last known number of charge counters to determine what you may put from your hand onto the battlefield.
- 17 November 2017If a card in a player's hand has {X} in its mana cost, X is considered to be 0.