Cheapest priced copy (The Brothers' War): $0.35 at Card Kingdom, near mint, their price list as of .
Deadly Riposte 
Instant · Common · Foundations · #492
Deadly Riposte deals 3 damage to target tapped creature and you gain 2 life.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War | 5 | Common | $0.35 | $0.49 |
| Ravnica: Clue Edition | 58 | Common | $0.35 | — |
| Foundations | 492 | Common | $0.35 | — |
| Foundations Jumpstart | 185 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 8 November 2024If the target creature is an illegal target as Deadly Riposte tries to resolve, it won't resolve and none of its effects will happen. You won't gain life.