Cheapest priced copy (Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .
Fire Shrine Keeper 
Creature — Elemental · 1/1 · Common · Ixalan · #144
Menace
{7}{R}, {T}, Sacrifice this creature: It deals 3 damage to each of up to two target creatures.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ixalan | 144 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 29 September 2017You can’t target the same creature twice to have Fire Shrine Keeper deal 6 damage to it.