Maar

"Your life is FORFEIT... surrender to DESPAIR!"

- Maar intimidating Zeratul.

Maar was a hybrid destroyer on Zhakul.

He had a strange way of talking. For instance, he would say "Some SECRETS must remain HIDDEN".

History
Shortly before the Second Great War, Maar captured three preservers on Zhakul and tried to keep Zeratul's forces away from them, while feeding off their lifeforce. Once fully charged, Maar advanced on Zeratul's encanpment. And every time the hybrid was beaten back, Maar would simply teleport back to the preservers to recharge.

Upon the rescue of the preservers, Maar died.

Abilities
Maar could corrupt or mind control protoss. In addition, he could regenerate from "death" by siphoning energy from preservers. If the preservers were attacked, he could teleport long-distance to engage the attackers.

Game Abilities
Maar's game abilities included graviton prison (which would suspend a unit helplessly into the air) and a blink ability with Zeratul's dark shadowy animation. He also used a shockwave-like ability, which damages and knocks back nearby units, although this ability has only been witnessed on hard (and brutal, obviously) difficulty, and after at least 3 regenerations.