Cheapest priced copy (Commander Legends): $0.35 at Card Kingdom, near mint, their price list as of .
Ambush Viper 
Creature — Snake · 2/1 · Common · Innistrad · #169
Flash
Deathtouch
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends | 213 | Common | $0.35 | $0.49 |
| Innistrad Remastered | 186 | Common | $0.35 | $0.49 |
| Innistrad | 169 | Common | $0.35 | $3.49 |