Cheapest priced copy (March of the Machine): $0.35 at Card Kingdom, near mint, their price list as of .
Attentive Skywarden 
Creature — Phyrexian Kor · 2/2 · Common · March of the Machine · #7
Flying
Whenever this creature deals combat damage to a player or battle, transform up to one target Incubator token you control.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine | 7 | Common | $0.35 | $0.49 |