Cheapest priced copy (Scars of Mirrodin): $2.49 at Card Kingdom, near mint, their price list as of .
Glint Hawk 
Creature — Bird · 2/2 · Common · Scars of Mirrodin · #10
Flying
When this creature enters, sacrifice it unless you return an artifact you control to its owner's hand.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $2.49 to $27.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Scars of Mirrodin | 10 | Common | $2.49 | $27.99 |
2 rulings from Wizards of the Coast
- 1 January 2011You choose which artifact to return to its owner’s hand as the triggered ability resolves. If you control no artifacts at that time, you must sacrifice Glint Hawk. Although players can respond to the ability, once it starts to resolve and you choose an artifact you control to return to its owner’s hand, it’s too late for players to respond.
- 1 January 2011You may choose to sacrifice Glint Hawk as its triggered ability resolves even if you control an artifact.