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Dark swarm

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Dark swarm is a collection of small zerg organisms that live within defilers. Defilers can spontaneously launch a number of these creatures into the fray, creating a defensive smokescreen that reduces the accuracy of ranged attacks.[1]

Though the defiler, and by extension the dark swarm, regressed into evolutionary obsolescence after the Brood War,[2] dark swarm made a resurgence during the Defenders of Man Insurgency, and were among the feral zerg lured to the surface of Borea.[3]

Game EffectEdit


DarkSwarm Icon SC1 Dark Swarm

Shields units in a 6x6 area from ranged attacks. Ranged attacks with splash damage only deal minimal splash damage. Firebat and lurker attacks, and damage from cast abilities, are totally unaffected. The casting player's buildings are shielded; enemy and allied buildings are not.

Hotkey W
Cost 100 Energy Terran SC1
Range 9

StarCraft IIEdit

Dark Swarm SC2 Icon1 Dark Swarm

Allied units in the area of effect take 0 damage from ranged attacks.

Hotkey D
Cost 100 Energy Terran SC1
Duration 10Time SC2 Game1

Heroes of the StormEdit

Heroes DevLog2

The following section contains information from Heroes of the Storm and is not canon to StarCraft continuity

Dark swarm appears as an ability for Dehaka in Heroes of the Storm.[4]


  1. Underwood, Peter, Bill Roper, Chris Metzen and Jeffrey Vaughn. StarCraft (Manual). Irvine, Calif.: Blizzard Entertainment, 1998.
  2. Barba, Rick. StarCraft Field Manual (hardcover). Insight Editions, November 17, 2015.
  3. Blizzard Entertainment. StarCraft II. (Activision Blizzard). PC. Mission: Nova Covert Ops, Sudden Strike (in English). 2016-03-29.
  4. Blizzard Entertainment. Heroes of the Storm (Blizzard Entertainment) (in English). June 2, 2015

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