Cheapest priced copy (Duskmourn: House of Horror): $0.35 at Card Kingdom, near mint, their price list as of .
Winter's Intervention 
Instant · Common · Duskmourn: House of Horror · #123
Winter's Intervention deals 2 damage to target creature. You gain 2 life.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 123 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 20 September 2024If the target creature is an illegal target as Winter's Intervention tries to resolve, it won't resolve and none of its effects will happen. You won't gain life.