The scourge nest is a type of zerg structure found on Char. It can launch scourges at air targets and has a very long range.
When Kerrigan returned to Char she activated these scourge nests by spawning creep tumors next to them. They were then used to destroy Warfield's Gorgon battlecruisers in the Bone Trench.[1]
The scourge nest is exclusive to Zagara in Co-op Missions. It replaces the spire in her tech tree, allowing her to build scourge and corrupters. Upgrades for the scourge are unlocked when Zagara reaches Level 4.
Scourges cost 50 less vespene gas to mutate.
Scourge attacks deal 50% splash damage.
