Cheapest priced copy (March of the Machine): $0.35 at Card Kingdom, near mint, their price list as of .
Merciless Repurposing 
Instant · Uncommon · March of the Machine · #117
Exile target creature. Incubate 3. (Create an Incubator token with three +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine | 117 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 14 April 2023If the target of Merciless Repurposing is illegal as the spell tries to resolve, it won't resolve and none of its effects will happen. You won't incubate.