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Ignus is a volcanic planet inhabited by ash worms. During the Second Great War it was occupied by the Ignus Brood and Terran Dominion.

Plot branch : Kerrigan chooses to evolve the Swarm Host

The local broodmother on Ignus had recently been killed, and the brood was in danger. Abathur discovered that the native ash worm's essence would allow the swarm host to deep tunnel through the planet's crust. Kerrigan had a group of existing swarm hosts locate and kill an ash worm and then had its essence assimilated. Abathur subsequently created the creeper strain of the swarm host, which could tunnel almost instantly to any location with creep. The creeper itself also generated its own creep when rooted. Kerrigan used these new creeper swarm hosts to defend the hive clusters from the Dominion.[1]

ReferencesEdit

  1. Blizzard Entertainment. StarCraft II: Heart of the Swarm. (Activision Blizzard). PC. Mission: Heart of the Swarm, Swarm Host Evolution (in English). 2013-03-12.