Cheapest priced copy (Khans of Tarkir): $0.35 at Card Kingdom, near mint, their price list as of .
Death Frenzy 
Sorcery · Uncommon · Khans of Tarkir · #172
All creatures get -2/-2 until end of turn. Whenever a creature dies this turn, you gain 1 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Khans of Tarkir | 172 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 20 September 2014Only creatures on the battlefield when Death Frenzy resolves will get -2/-2. However, if a creature enters the battlefield and then dies later that turn, you’ll gain 1 life for it.
- 20 September 2014You gain 1 life for each creature that Death Frenzy causes to have a toughness of 0 or less. The delayed triggered ability is created before state-based actions cause any creatures with 0 or less toughness to die.