Cheapest priced copy (Innistrad): $0.35 at Card Kingdom, near mint, their price list as of .
Ranger's Guile 
Instant · Common · Core Set 2021 · #199
Target creature you control gets +1/+1 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
5 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad | 201 | Common | $0.35 | $1.49 |
| Magic 2014 | 191 | Common | $0.35 | $0.99 |
| Magic 2015 | 193 | Common | $0.35 | $0.79 |
| Core Set 2021 | 199 | Common | $0.35 | $0.49 |
| The List | M15-193 | Common | $0.35 | — |