Cheapest priced copy (Strixhaven: School of Mages): $0.35 at Card Kingdom, near mint, their price list as of .
Devouring Tendrils 
Sorcery · Uncommon · Strixhaven: School of Mages · #126
Target creature you control deals damage equal to its power to target creature or planeswalker you don't control. When the permanent you don't control dies this turn, you gain 2 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Strixhaven: School of Mages | 126 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 16 April 2021Devouring Tendrils creates a delayed triggered ability that triggers whenever the target creature or planeswalker you don’t control dies this turn, even if it didn’t die because of the damage dealt as Devouring Tendrils resolved.