Cheapest priced copy (Torment): $0.79 at Card Kingdom, near mint, their price list as of .
Shambling Swarm 
Creature — Horror · 3/3 · Rare · Torment · #82
When this creature dies, distribute three -1/-1 counters among one, two, or three target creatures. For each -1/-1 counter you put on a creature this way, remove a -1/-1 counter from that creature at the beginning of the next end step.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.79 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Torment | 82 | Rare | $0.79 | $6.99 |
One ruling from Wizards of the Coast
- 1 April 2008The -1/-1 counters you remove don’t have to be the same counters put on the creature by Shambling Swarm.