Zerg Flyer Carapace Level 1
Upgrades the armor of all Zerg air units.
Zerg Flyer Carapace Level 2
Further upgrades the armor of all Zerg air units.
Zerg Flyer Carapace Level 3
Maximizes the armor of all Zerg air units.
Increases the movement speed of Overlords and Overseers.
Allows Overlords to transport units.
Morph to Overseer
Advanced aerial observer. Provides the same supply as an Overlord. Can use the Spawn Changeling and Contaminate abilities.
Makes the Overlord start to generate creep. Creep will only be generated when the Overlord isn’t moving. Creep feeds nearby Zerg structures.