Cheapest priced copy (March of the Machine): $0.49 at Card Kingdom, near mint, their price list as of .
Glistening Dawn 
Sorcery · Rare · March of the Machine · #187
Incubate X twice, where X is the number of lands you control. (To incubate X, create an Incubator token with X +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine | 187 | Rare | $0.49 | $0.49 |
| March of the Machine | 371 | Rare | $0.49 | $0.49 |
| March of the Machine Promos | 187p | Rare | $0.49 | $0.49 |
| March of the Machine Promos | 187s | Rare | — | $0.59 |
One ruling from Wizards of the Coast
- 14 April 2023Use the number of lands you control as Glistening Dawn resolves to determine the value of X.