Cheapest priced copy (Theros): $0.35 at Card Kingdom, near mint, their price list as of .
Sip of Hemlock 
Sorcery · Common · Theros · #106
Destroy target creature. Its controller loses 2 life.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Theros | 106 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 15 September 2013If the creature is an illegal target when Sip of Hemlock tries to resolve, it won't resolve and none of its effects will occur. The creature's controller won't lose 2 life. However, if Sip of Hemlock resolves and the creature isn't destroyed (perhaps because it regenerated or had indestructible), the creature's controller will still lose 2 life.