Cheapest priced copy (The Lost Caverns of Ixalan Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Redemption Choir 
Creature — Vampire Cleric · 3/3 · Rare · The Lost Caverns of Ixalan Commander · #74
Lifelink
Coven — Whenever this creature enters or attacks, if you control three or more creatures with different powers, return target permanent card with mana value 3 or less from your graveyard to the battlefield.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $2.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan Commander | 42 | Rare | $2.29 | — |
| The Lost Caverns of Ixalan Commander | 74 | Rare | $0.49 | — |
2 rulings from Wizards of the Coast
- 10 November 2023You must control three or more creatures with different powers at the time the coven ability triggers and at the time the ability tries to resolve. They do not, however, need to be the same set of creatures in both cases.
- 10 November 2023For three creatures to have different powers from one another, each of their powers needs to be different. A 1/1 creature, a 2/1 creature, and another 2/1 creature aren't three creatures with different powers, even though both 2/1 creatures have different power than the 1/1 creature.