Cheapest priced copy (Scourge): $0.35 at Card Kingdom, near mint, their price list as of .
Accelerated Mutation 
Instant · Common · Scourge · #109
Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Scourge | 109 | Common | $0.35 | $0.49 |