Servitors are curious magickal creatures.
Essentially, they are thoughtforms designed to do the bidding of the magician that creates them. They come in many forms, however, and it's important to understand how they work...
... and how to stop the ones that get out of control.
How does one create a servitor?
To explain it in the most layperson fashion, servitors are little pieces of your will or intent that you give permission to work independently of you for a task or range of tasks.
So, to create one is relatively easy. You must simply imagine it into being.
Before doing that, put in some work by defining the parameters of the servitor, not unlike a computer program. Only this program will attempt to overwrite concepts of the Omniversal OS that is all consensus reality and beyond.
Intent in important in magick, and no area more than the creating of thoughtforms that act indvidually from the creator of said magick. For an ethical magician, it is a must to program in some ground rules to prevent disaster.
And a kill switch of some sort if absolutely necessary.
Why do we use servitors?
Oh, for pretty much anything.
Just keep in mind these aren't like your forgotten Tamagotchi pets that are now rotting in some silicon in-between hellscape.
If you decide the servitor is of no more use, the best thing you can do is end it's existence. If you let a servitor live too long, there is a good chance it will begin to evolve, as all things tend to do.
It's also highly suggested to not use this or any magick to completely attempt to circumvent the will of others. Not only is it bad form, but if you fuck too much with the probabilisitc qualities of magick, eventually they fuck you back.
Where does it come from?
Servitors are a strange brew born of the psychological concept of magick. Influenced by Jungian concepts, further developed by AOS, and then molded into what we would recognize today by early chaotes in the 1970s and 1980s.
Where can I get some?
It's rather easy, as has already been intimated to you, dear reader.
Simply will them into being. Give them a purpose. Give them form. Give them purchase in this world.