Cheapest priced copy (Magic Origins): $0.35 at Card Kingdom, near mint, their price list as of .
Touch of Moonglove 
Instant · Common · Magic Origins · #123
Target creature you control gets +1/+0 and gains deathtouch until end of turn. Whenever a creature dealt damage by that creature dies this turn, its controller loses 2 life. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic Origins | 123 | Common | $0.35 | $0.49 |
| The List | ORI-123 | Common | $0.69 | — |
One ruling from Wizards of the Coast
- 22 June 2015The controller of the creature dealt damage by the target creature is the one who loses 2 life, not the controller of the target creature.