Cheapest priced copy (Foundations Jumpstart): $0.35 at Card Kingdom, near mint, their price list as of .
Agonizing Syphon 
Sorcery · Common · Core Set 2020 · #83
Agonizing Syphon deals 3 damage to any target and you gain 3 life.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 396 | Common | $0.35 | — |
| Jumpstart | 199 | Common | $0.35 | — |
| Core Set 2020 | 83 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 12 July 2019If the chosen target becomes an illegal target for Agonizing Syphon, the spell won't resolve. You won't gain life.