Cavir is a planet populated by feral zerg, located far away from Dominion Space.[1]


Daggoth used the planet as a birthing colony for his Tiamat Brood. After the death of their master, the zerg became feral and fought each other. During the Second Great War, Abathur discovered a small group of lurkers among the survivors.[2]

Plot branch : Kerrigan decides to evolve the hydralisk

Sarah Kerrigan was able to control the group of lurkers, but couldn't morph more of them. Abathur informed her that a key sequence was missing, and that a lurker den was required. One was found nearby and the group of lurkers was used to protect it from more feral zerg until Broodmother Kilysa arrived to recover its essence.[2]

Plot branch ends here

The following section contains information from Heroes of the Storm that is ambiguously canonical.

At some point between the End War and One-Day War, the planet was re-visited by the rogue brood of Abathur and Mukav, who were plotting against Overqueen Zagara. The anub'alisk, which had been created to safeguard the colony, was incorporated into their brood.[3]


  1. 2018-09-25, New 'StarCraft' Comic Revealed, First Look at 'Soldiers' ., accessed on 2018-09-25
  2. 2.0 2.1 Blizzard Entertainment. StarCraft II: Heart of the Swarm. (Activision Blizzard). PC. Mission: Heart of the Swarm, Hydralisk Evolution (in English). 2013-05-08.
  3. Blizzard Entertainment. Heroes of the Storm (Blizzard Entertainment) (in English). June 2, 2015