Cheapest priced copy (Nemesis): $0.35 at Card Kingdom, near mint, their price list as of .
Air Bladder 
Enchantment — Aura · Common · Nemesis · #28
Enchant creature
Enchanted creature has flying.
Enchanted creature can block only creatures with flying.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Nemesis | 28 | Common | $0.35 | $0.79 |