NOTE: PLEASE DO NOT FAV MY DEVIATION WITHOUT A COMMENT, I GREATLY PREFER COMMENTS THAT FAVS!
The Changeling is a must in any all Tzeentch army, for 5pts it allows me to force an enemy unit to target a friendly unit so they can either stand around confused or pass a leadership to try and see through the illusion if not they shoot everything they can at the chosen friendly unit.
Such an ability would certainly require a robot that has some level of psychic power I thought of two options 1. A psykers brain implanted into a robot or 2. An ancient piece of tech that focuses on feeding info directly into the targets brain to create illusions. I decided to choose both and created the Zanatorian Mastermind. I did think of using a sphere instead of a skull but I feel that would be over using that idea as it is already being used of the Scorpions and Disruptors.
Just think of it as a robotic Zoanthrope, regarding the paint scheme I went with Dark colours with a small amount of blue to blend it in with the army.
Machine Lord (objective or herald): [link]
Harbingers (Chariots): [link]
Dragoons (Flamers): [link]
Iron Guard (Horrors): [link]
Steel Scorpions (Nurglings): [link]
Mastermind (Changling): On Screen
Disruptor (Screamer): [link]
Golem (Deamon Prince): [link]