Hybrid dominator

"Your crusade had failed. Your brethren and the master are one flesh."

- A dominator taunting Fenix and Karax.

Hybrid dominators are enhanced versions of the hybrid destroyer.

Overview
Dominators were experimental hybrids. They were created years prior to the Second Great War, but Narud continued to experiment on them. They had mental indoctrination to keep them under control.

History
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.

Dominators reappeared alongside the Moebius Corps in their attack on Korhal during the End War. They channeled the energy of the Keystone to disrupt the Dominion forces. They reappeared alongside a hybrid behemoth to defend the psi-matrix on Aiur, in a bid to allow the Golden Armada to reinforce the world.

Game Unit
Hybrid dominators are encountered in "Hand of Darkness." They are initially sealed in stasis cells and are released periodically throughout the mission, starting a countdown timer until Sarah Kerrigan is instantly killed. The player must find and destroy the currently active dominator before this happens. Their armor, shield, and weapon upgrades automatically increase throughout the level, and they begin using their various abilities more liberally as well.

In Heart of the Swarm, their appearance is identical to that of hybrid destroyers. In Legacy of the Void, they receive their own unit model and portrait.

Development
Hybrid dominators originally possessed the ability to merge with one another. The original mission mechanics involved them creating a psionic vortex that would destroy Ketill if three merged together.