Cheapest priced copy (Ikoria: Lair of Behemoths): $0.49 at Card Kingdom, near mint, their price list as of .
Battra, Dark Destroyer 
Dirge Bat
Creature — Bat · 3/3 · Rare · Ikoria: Lair of Behemoths · #386
Mutate {4}{B}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flash
Flying
Whenever this creature mutates, destroy target creature or planeswalker an opponent controls.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.49 to $15.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ikoria: Lair of Behemoths | 84 | Rare | $0.49 | $0.79 |
| Ikoria: Lair of Behemoths | 289 | Rare | $0.59 | $1.99 |
| Ikoria: Lair of Behemoths (Battra, Dark Destroyer) | 386 | Rare | $6.99 | $15.99 |
| Ikoria: Lair of Behemoths Promos | 84p | Rare | $1.49 | $2.49 |
| Ikoria: Lair of Behemoths Promos | 84s | Rare | — | $0.99 |