Cheapest priced copy (March of the Machine): $0.35 at Card Kingdom, near mint, their price list as of .
Seed of Hope 
Instant · Common · March of the Machine · #204
Mill two cards. You may put a permanent card from among the milled cards into your hand. You gain 2 life. (To mill two cards, put the top two cards of your library into your graveyard.)
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 | 204 | Common | $0.35 | $0.49 |