Cheapest priced copy (Eventide): $0.35 at Card Kingdom, near mint, their price list as of .
Soul Reap 
Sorcery · Common · Eventide · #44
Destroy target nongreen creature. Its controller loses 3 life if you've cast another black spell this turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eventide | 44 | Common | $0.35 | $0.79 |
3 rulings from Wizards of the Coast
- 1 August 2008A hybrid creature that’s green and another color is *not* a nongreen creature. Since it’s green, it can’t be nongreen!
- 1 August 2008Although Soul Reap says it looks for “another black spell,” there’s no requirement that Soul Reap actually be cast (or be black) for this part of its ability to work. For example, if a spell such as Commandeer causes you to gain control of Soul Reap, it’ll still check whether you cast a black spell this turn, even though you didn’t cast Soul Reap itself.
- 1 August 2008Soul Reap doesn’t check whether you’ve cast another black spell until Soul Reap resolves. If you cast Soul Reap, then cast a black instant in response, the creature’s controller will lose the life when Soul Reap resolves.