Corruptor

The corruptor is a squid-like zerg flying unit set to appear in StarCraft II. When it kills an enemy unit, it corrupts it to its side, transforming it into a floating turret for a short period of time.

Game Unit
The corruptor attacks air units and aerial structures, including units lifted by Anti-Gravity and even colossi.

Instead of destroying them, however, it "corrupts" them, possessing the enemy units. The attack is technically a debuff, which lasts for about two seconds. If that unit is destroyed during this time, it becomes corrupted, regardless of which unit landed the final blow. A corrupted unit becomes a stationary turret on the side of the zerg.

Corruptors counter powerful building-destroying air units such as Banshees and void rays.

Abilities
As of January 2010, corruptors have been given unspecified "spells".

Corrupted Units
Corrupted units can attack ground and air units as well as structures. The player can control them, forcing them to attack certain targets.

Corrupted units have a limited life span and will eventually die on their own. A ground unit affected by Anti-Gravity will return to the ground.

If the corruptor corrupts a transport, such as a medivac dropship, the units inside perish.

Strategies
When corruptors attack an enemy force, the opposing player must decide whether to destroy any corrupted units, whether to try to kill the corruptors, or whether to retreat.