Protoss are able to use mind control. Judicators could use their powers to subtly influence the minds of other creatures. Dark archons however, through an immense expenditure of energy, are able to project a portion of their psychic essence into another being, gaining control over its actions and access to its memories.
Transfers control of any enemy unit to the casting player. Using Mind Control will drain the dark archon's shields and leave it vulnerable.
Mind controlling a transport will also transfer control of any units the transport is carrying, and mind controlling a unit that has researched upgrades or special abilities will transfer them to the dark archon's player.
The transfer is permanent and irreversible, even after the death or the transfer of control of the dark archon who performed it. Any unit can be subject to multiple Mind Control spells, effectively changing ownership every time.
If mind control is used on units from other races, the dark archon's controller will have access to the supply of that race. Terran and zerg units and buildings become available by mind controlling SCVs and drones; thus, protoss armies have the potential to expand their military powers dramatically should they have the resources to do so. For example, a protoss player with a large surplus of minerals and gas mind controls an SCV. While he/she had a potential of 200 protoss supply before, he/she now has a potential of 200 protoss and 200 terran supply. Such occurrences, however, are rare in higher-level competitive gaming due to the efficiency and speed at which players use up their resources.
Mind control is available as a researched ability for Vorazun's dark archons once she reaches level 9. It can be researched from the dark shrine. Heroic units are immune, and mind controlled units count towards the player's supply.
Take permanent control of target enemy unit. Heroic units are immune. Mind Controlled units take up supply.
↑Zeratul: "It's done, Kerrigan. The Overmind is dead as you wished. Now I demand that you release the Matriarch at once!" Kerrigan: "Of course. Raszagal, do you wish to return to your tribe?" Raszagal: "No, my Queen. I wish only to serve you and remain at your side." Zeratul: "What treachery is this, Kerrigan? This pathetic creature cannot possibly be Raszagal!" Kerrigan: "Ha ha ha. I promised that I'd allow her to return to you, Zeratul. But it looks to me like she doesn't want to go." Zeratul: "You have corrupted her! Somehow you have poisoned her thoughts. Restore her to her rightful self, or you will pay dearly for this offense, Kerrigan!" Kerrigan: "All right, Zeratul, you've got me. I made your Matriarch my slave long before I joined you on Shakuras. She made the mistake of underestimating my power just like everyone else did." StarCraft: Brood War. Vivendi Games. Level/area: To Slay the Beast (in English). 1998.