Cheapest priced copy (March of the Machine Commander): $5.99 at Card Kingdom, near mint, their price list as of .
Herald of Hoofbeats 
Creature — Human Knight · 3/3 · Rare · March of the Machine Commander · #22
Horsemanship (This creature can't be blocked except by creatures with horsemanship.)
Other Knights you control have horsemanship.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine Commander | 22 | Rare | $5.99 | — |
| March of the Machine Commander | 109 | Rare | $5.99 | — |