Qâzoi Kyantuska (translated as Suppress Thought in Basic and otherwise known as control mind) was a Sith magical ability that made the wielder effectively able to control and influence the minds of anyone they chose.
Employers of Qâzoi Kyantuska were capable of using the Force to telepathically dominate a single mind, or a multitude of individuals simultaneously. There didn't appear to be any incantation or gestures required, as known users were shown to have simply been in the presence of their victims. The affected were seemingly in a trance, hypnotically paralyzed and unable to control their own faculties. Should the conjurer choose, the victim could end their own life, usually against their own will. If the caster was in direct physical contact with an individual, they could tap directly into the individual's mind, and force them into whatever action they so desired.
Sith Acolyte Satal Keto displayed a physically taxing yet working mastery with mind control. With his power, Keto telepathically took command of his Krath chaos fighters and turned them into living weapons. These suicidal pilots all met their demise under Keto's hypnotic will, using their ships to crash into the opposing Republic forces.
Perhaps the most famous use of mass mind control was by the Dark Lord of the Sith Exar Kun. During the trial of fellow Sith Lord Ulic Qel-Droma, Kun stormed the hearing and mentally "froze" the entire assembly, except for Supreme Chancellor Sidrona and several others. Kun grabbed the Chancellor by his head, and when Kun's Sith amulet began to resonate with the dark side, the Chancellor's words were those of Kun—he was exerting his psychic control via direct physical contact. When Kun was finished, he released his grip on the Chancellor, who then slumped down dead on the floor.
The Devaronian Cartariun found a Sith Temple on the planet Malrev IV where he stayed isolated for a number of years, learning to harness the power of the dark side through Sith magic. Though he eventually drove himself into madness, he gained enough knowledge of Sith magic to exert his will over the native Irrukiine. He was murdered however, by Girov Dza'tey who sought his dark power for himself.
- Tales of the Jedi – Dark Lords of the Sith 2 (First appearance)
- Tales of the Jedi: Dark Lords of the Sith audio
- Tales of the Jedi – The Sith War 3
- Star Wars: Knights of the Old Republic: Vector
- Star Wars: Dark Times: Vector
- The Old Republic: Revan
- The Old Republic: Revan audiobook
- Star Wars: The Old Republic
- Star Wars: The Old Republic: Knights of the Eternal Throne
- Darth Plagueis (Mentioned only)
- Darth Plagueis audiobook (Mentioned only)
- "The Final Exit"—Star Wars Adventure Journal 4 (Mentioned only) (as Control Mind)
- (Mentioned only) (as Control Mind)
- (as Control Mind)
- "The Most Dangerous Foe"—Star Wars Adventure Journal 11 (Mentioned only) (as control mind)
- "Uhl Eharl Khoehng"—Star Wars Adventure Journal 8 (as control mind)
- Star Wars: X-Wing Rogue Squadron: Requiem for a Rogue
- (As "Control Mind")
- Heir to the Empire Sourcebook (as Control Mind)
- Dark Force Rising Sourcebook (as Control Mind)
- Star Wars Gamemaster Screen (as Control Mind)
- Dark Empire Sourcebook (as control mind)
- The Movie Trilogy Sourcebook (as control mind)
- The Last Command Sourcebook (as control mind)
- Star Wars Sourcebook, Second Edition (as control mind)
- Imperial Sourcebook, Second Edition (as control mind)
- Galaxy Guide 5: Return of the Jedi, Second Edition (as control mind)
- The Jedi Academy Sourcebook (as control mind)
- Shadows of the Empire Sourcebook (as control mind)
- The Thrawn Trilogy Sourcebook (as control mind)
- Galaxy Guide 3: The Empire Strikes Back, Second Edition (as control mind)
- Tales of the Jedi Companion
- Star Wars Gamemaster Screen, Revised (as Control Mind)
- Wretched Hives of Scum & Villainy (as control mind)
- Star Wars Trilogy Sourcebook, Special Edition (as control mind)
- "Predators of the Empire"—Star Wars Galaxy Magazine 6
- The Essential Chronology
- The Sith Compendium"—Star Wars Gamer 5 "
- The Dark Side Sourcebook
- Power of the Jedi Sourcebook
- Jedi vs. Sith: The Essential Guide to the Force
- Book of Sith: Secrets from the Dark Side
- Star Wars: Beware the Sith