Cheapest priced copy (New Capenna Commander): $1.29 at Card Kingdom, near mint, their price list as of .
Aura Mutation 
Instant · Rare · Starter Commander Decks · #217
Destroy target enchantment. Create X 1/1 green Saproling creature tokens, where X is that enchantment's mana value.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $1.29 to $64.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2016 | 180 | Rare | $1.99 | — |
| Invasion | 232 | Rare | $5.49 | $64.99 |
| New Capenna Commander | 328 | Rare | $1.29 | — |
| Starter Commander Decks | 217 | Rare | $1.49 | — |
One ruling from Wizards of the Coast
- 4 October 2004This spell doesn't resolve and you get no Saprolings if the enchantment is an illegal target on resolution.