Cheapest priced copy (Edge of Eternities): $0.35 at Card Kingdom, near mint, their price list as of .
Zealous Display 
Instant · Common · Edge of Eternities · #45
Creatures you control get +2/+0 until end of turn. If it's not your turn, untap those creatures.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 45 | Common | $0.35 | $0.49 |