Cheapest priced copy (Duel Decks: Nissa vs. Ob Nixilis): $0.35 at Card Kingdom, near mint, their price list as of .
Fetid Imp 
Creature — Imp · 1/2 · Common · The List · #ORI-97
Flying
{B}: This creature 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
5 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Nissa vs. Ob Nixilis | 48 | Common | $0.35 | — |
| Jumpstart 2022 | 415 | Common | $0.35 | — |
| Core Set 2021 | 98 | Common | $0.35 | $0.49 |
| Magic Origins | 97 | Common | $0.35 | $0.49 |
| The List | ORI-97 | Common | $0.35 | — |