Biological air-to-air missile
Scourges appear in outside multiplayer.
Game Unit Edit
Wings of Liberty Edit
Scourges appear in
as environmental ambiance in missions StarCraft II: Wings of Liberty ; they appear in the protoss mini-campaign  and in the  Char missions. They are last seen as a special form of attack by  leviathans, dealing 500 damage each.
Heart of the Swarm Edit
, scourge are launched from StarCraft II: Heart of the Swarm scourge nests as part of scripted events in " Fire in the Sky".
A "scourge spore" exists in
Heart of the Swarm beta files.
Co-op Missions Edit
The scourge is exclusive to
Zagara in Co-op Missions, and require a scourge nest to mutate. Upgrades for the scourge are unlocked when Zagara reaches Level 4. As in the original , scourges mutate in pairs.
Upgrades and Abilities Edit
Scourge cost 50 less vespene gas to mutate.
Reach Zagara Level 4.
Increases the attack damage of zerg air units
Increases the armor of zerg air units.