Cheapest priced copy (Revised Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Goblin Balloon Brigade 
Creature — Goblin Warrior · 1/1 · Common · Magic 2011 · #140
{R}: This creature gains flying until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
18 printings · $0.35 to $349.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Unlimited Edition | 154 | Uncommon | $6.99 | — |
| 30th Anniversary Edition | 149 | Uncommon | $0.99 | — |
| 30th Anniversary Edition | 446 | Uncommon | $59.99 | — |
| Revised Edition | 154 | Uncommon | $0.35 | — |
| Fourth Edition Foreign Black Border | 197 | Uncommon | — | — |
| Fourth Edition | 197 | Uncommon | $0.39 | — |
| Ninth Edition | 189 | Uncommon | $0.35 | — |
| Ninth Edition | 189★ | Uncommon | — | $0.79 |
| Anthologies | 30 | Common | $0.59 | — |
| Collectors' Edition | 154 | Uncommon | $6.99 | — |
| Intl. Collectors' Edition | 154 | Uncommon | $9.49Out of stock | — |
| Conspiracy: Take the Crown | 159 | Common | $0.35 | $0.49 |
| Foreign Black Border | 154 | Uncommon | — | — |
| Limited Edition Alpha | 153 | Uncommon | $349.99Out of stock | — |
| Limited Edition Beta | 154 | Uncommon | $54.99 | — |
| Magic 2011 | 140 | Common | $0.35 | $0.49 |
| The List | CN2-159 | Common | $0.35 | — |
| Summer Magic / Edgar | 154 | Uncommon | — | — |
2 rulings from Wizards of the Coast
- 1 August 2008You can activate the ability repeatedly during a turn. This generally has no additional effect, unless some other effect (like that from Adarkar Windform has caused it to lose flying since the last time the ability resolved.
- 15 August 2010For flying to work as an evasion ability, an attacking Goblin Balloon Brigade's ability must be activated before the declare blockers step begins. Once Goblin Balloon Brigade has become blocked, giving it flying won't change that.