Cheapest priced copy (Duel Decks: Elspeth vs. Tezzeret): $0.35 at Card Kingdom, near mint, their price list as of .
Clockwork Condor 
Artifact Creature — Bird · 0/0 · Common · Duel Decks: Elspeth vs. Tezzeret · #50
Flying
This creature enters with three +1/+1 counters on it.
Whenever this creature attacks or blocks, remove a +1/+1 counter from it at end of combat.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Elspeth vs. Tezzeret | 50 | Common | $0.35 | — |
| Mirrodin | 154 | Common | $0.35 | $0.49 |