Cheapest priced copy (Bloomburrow): $0.35 at Card Kingdom, near mint, their price list as of .
War Squeak 
Enchantment — Aura · Common · Bloomburrow · #160
Enchant creature
When this Aura enters, target creature an opponent controls can't block this turn.
Enchanted creature gets +1/+1 and has haste.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Bloomburrow | 160 | Common | $0.35 | $0.49 |