Hybrid dominator

Hybrid dominators are enhanced versions of the Hybrid destroyer. They first appear in the Heart of the Swarm mission Hand of Darkness.

In Heart of the Swarm
Eight dominators were created in a secret Terran Dominion lab at Skygeirr Station. They were commanded by Dr. Emil Narud, a servant of the fallen xel'naga Amon. When Sarah Kerrigan and the zerg Swarm attacked Skygeirr and infiltrated the lab, the dominators were released from their stasis cells. They attacked Kerrigan psionically and attempted to drain her life, but Kerrigan and her forces fought and killed each one and destroyed the lab.