Cheapest priced copy (Scars of Mirrodin): $0.35 at Card Kingdom, near mint, their price list as of .
Snapsail Glider 
Artifact Creature — Construct · 2/2 · Common · Scars of Mirrodin · #203
Metalcraft — This creature has flying as long as you control three or more artifacts.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Scars of Mirrodin | 203 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 1 January 2011For the purposes of combat, whether Snapsail Glider has flying is relevant only as the declare blockers step begins. If an attacking Snapsail Glider without flying becomes blocked, gaining control of enough artifacts to cause it to have flying won't change that. Similarly, if a Snapsail Glider with flying blocks another creature with flying, losing control of enough artifacts to cause the Glider to lose flying won't change that.