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.
Though the defilers, and by extension the dark swarm, regressed into evolutionary obsolescence after the Brood War, the dark swarm made a resurgence during the Defenders of Man Insurgency, and were among the feral zerg lured to the surface of Borea.
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. Structures are not shielded.
Allied units in the area of effect take 0 damage from ranged attacks.
Heroes of the Storm
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- Blizzard Entertainment. Heroes of the Storm (Blizzard Entertainment) (in English). June 2, 2015