Cheapest priced copy (Modern Masters 2015): $0.35 at Card Kingdom, near mint, their price list as of .
Instill Infection 
Instant · Common · Scars of Mirrodin · #68
Put a -1/-1 counter on target creature.
Draw a card.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Masters 2015 | 85 | Common | $0.35 | $0.49 |
| The List | MM2-85 | Common | $0.35 | — |
| Scars of Mirrodin | 68 | Common | $0.35 | $0.49 |