Cheapest priced copy (Lorwyn Eclipsed): $0.35 at Card Kingdom, near mint, their price list as of .
Aquitect's Defenses 
Enchantment — Aura · Common · Lorwyn Eclipsed · #44
Flash
Enchant creature you control
When this Aura enters, enchanted creature gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Enchanted creature gets +1/+2.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn Eclipsed | 44 | Common | $0.35 | $0.49 |