StarCraft/Zerg upgrades

The cost of a special ability is the amount of energy required to cast it while the research cost is the amount of resources (minerals and gas) need to make it available.

Burrow
Allow the unit to burrow itself to hide from enemies. A burrowed unit can only be seen by a detector unit.


 * Statistics
 * Cost: None
 * Research cost: 100/100
 * Research building: Lair, Hive
 * Available for: Drone, Zergling, Hydralisk and Defiler

Consume
Allow to sacrifice a friendly Zerg unit to regain energy. Consume is a defiler ability. It can be used on burrowed units as well as on eggs but not on larvae.


 * Statistics
 * Cost: None
 * Research cost: ?
 * Research building: Defiler mound
 * Available for: Defiler

Dark swarm
Create a cloud (6x6) where ranged attacks have no effect. The cloud last 60 seconds. Melee and splash damages are not affected.


 * Statistics
 * Cost: 100
 * Research cost: ?
 * Research building: None
 * Available for: Defiler
 * Range: 9

Infest Command Center
This ability only works if an enemy Terran Command Center is weaken enough so please damage the Command Center to half of its health points and then send a Queen to infest it. After infestation the Command Center can be ordered to lift off to move to a safer place or it can build the most powerful attacker in the game, the Infested Terran.