Defiler

This breed is very rarely encountered, and we can be thankful for that. Vaguely resembling a scorpion in appearance, Defilers are veritable cancer factories. They generate a number of virus-like biochemicals which are capable of overpowering even the most effective anti-toxins. Defilers also appear to feed on other Zerg for biomaterial to produce these chemicals, and are often found with Zergling escorts. This self-destructive behavior only underscores the Zerg’s single-mindedness.

The Defiler draws its strength from the metasynaptic energy it creates. With that energy, the Defiler can unleash abilities like Plague and Dark Swarm that can demolish enemy forces unfortunate enough to be caught by the effects. In addition, the Defiler can also be evolved to include the ability to Consume other Zerg units from the same brood. Upon consumption, the Defiler's energy is partially recharged, allowing it to continue to use its other abilities without having to waste the time it usually takes to wait for energy to recharge. For more details about these abilities refer to the Special Abilities section below.

Despite its awesome abilities, the Defiler has a key weakness: the complete lack of a physical attack. This leaves the Defiler very vulnerable and should it be caught unescorted, even a simple Drone, SCV, or Probe can put an end to the Defiler threat. Because of this, the Defiler should always be in the company of friendly support units. If the occasion ever arises where the Defiler is alone, it should use the Burrow ability to hide and recharge its energy stores safely.