Cheapest priced copy (Theros): $0.35 at Card Kingdom, near mint, their price list as of .
Pharika's Cure 
Instant · Common · Theros · #100
Pharika's Cure deals 2 damage to target creature and you gain 2 life.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Theros | 100 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 15 September 2013If the creature is an illegal target as Pharika's Cure tries to resolve, it won't resolve and none of its effects will happen. You won't gain life. If, on the other hand, Pharika's Cure does resolve but the damage is prevented, you'll still gain life.