Cheapest priced copy (Ikoria: Lair of Behemoths): $0.35 at Card Kingdom, near mint, their price list as of .
Dreamtail Heron 
Creature — Elemental Bird · 3/4 · Common · Ikoria: Lair of Behemoths · #284
Mutate {3}{U} (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.)
Flying
Whenever this creature mutates, draw a card.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ikoria: Lair of Behemoths | 47 | Common | $0.35 | $0.49 |
| Ikoria: Lair of Behemoths | 284 | Common | $0.35 | $0.49 |
| The List | IKO-47 | Common | $0.35 | — |