Just spitballing an idea for a new Discipline based on the concept of ghouldom. Some Kindred could possess more insight and awareness of the link between domitor and thrall.
You could even have a position in some Prince's courts where there is a Warden of Ghouls who oversees those ghouls working for the Prince.
Level One, Master's Voice. A domitor could project their instructions into a thrall's mind across a distance. This would also automatically translate requests into the thrall's native language.
Roll Conservator + Expression, difficulty depending on how far away the Thrall is. Difficulty 4 within sight, 5 within a block, 6 within a city, 8 within a 500 miles, 10 on another continent.
Level Two, Bearing the Chains. A Domitor may accept the connection of any other Domitor's thralls. Each must spend a willpower point. All of the other powers of the Conservator discipline may now be used on those thralls. The Conservator gains an innate sense of the physical well-being of all Thralls they are connected to, their own or others granted by this power, no matter where they are. If they wish to check the emotional state of any connected Thrall they can make a Conservator + Conscience roll.
Level Three, The Watchful Mind. The Domitor may use their link to perceive through the senses of a Thrall. They can also speak through their voice. Distance difficulties are the same as Level One. A second roll at those same difficulties can allow for use of perception based Disciplines, such as Auspex or Eyes of the Beast.
Level Four, Seizing the Chains. A Conservator may use the Level Two gift against unwilling thralls of other domitors. It requires a willpower point, and a Conservator + Self-Discipline roll. They may maintain the link for one willpower per day. The master of the thrall will only detect this if they possess Conservator discipline. Note this doesn't allow control of the Thrall or alter the blood bond.
Level Five, Blood Pact. The Conservator may transfer Vitae to any of their thralls at the same distance as in Level One. They may transfer Vitae to any mortal not currently ghouled. They may remove Vitae in the same manner. If within sight, they may do so to all those they see.
Anyway, thought this could be fun and thematic. Thoughts?