Cheapest priced copy (Core Set 2020): $0.35 at Card Kingdom, near mint, their price list as of .
Noxious Grasp 
Instant · Uncommon · Core Set 2020 · #110
Destroy target creature or planeswalker that's green or white. You gain 1 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Core Set 2020 | 110 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 12 July 2019If the target creature or planeswalker is an illegal target by the time Noxious Grasp tries to resolve, the spell doesn’t resolve. You won’t gain life. If the target is legal but not destroyed (most likely because it has indestructible), you will gain life.