Cheapest priced copy (Dragons of Tarkir): $0.35 at Card Kingdom, near mint, their price list as of .
Coat with Venom 
Instant · Common · Dragons of Tarkir · #91
Target creature gets +1/+2 and gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dragons of Tarkir | 91 | Common | $0.35 | $0.99 |
| Explorers of Ixalan | 17 | Common | $0.35 | — |
| Foundations Jumpstart | 412 | Common | $0.35 | — |
| The List | DTK-91 | Common | $0.35 | — |