Cheapest priced copy (Zendikar Rising): $0.35 at Card Kingdom, near mint, their price list as of .
Relic Vial 
Artifact · Uncommon · Zendikar Rising · #250
{2}, {T}, Sacrifice a creature: Draw a card.
As long as you control a Cleric, this artifact has "Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life."
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Zendikar Rising | 250 | Uncommon | $0.35 | $0.49 |
4 rulings from Wizards of the Coast
- 25 September 2020If Relic Vial leaves the battlefield at the same time as each Cleric you control, the triggered ability triggers for any creatures you control that die at the same time (possibly including those Clerics).
- 25 September 2020Once Relic Vial’s ability has triggered, that ability resolves even if you no longer control a Cleric.
- 25 September 2020In a Two-Headed Giant game, Relic Vial’s ability causes the opposing team to lose 2 life and you to gain 1 life.
- 25 September 2020If you sacrifice the only Cleric you control to activate Relic Vial’s first ability, the triggered ability it gives itself triggers.