Deputies are only human, after all. They can be manipulated. The first step in unseating a would-be deputy is to understand the intricacies of their ego.
A good overlord knows that a deputy's ego is their greatest weakness. Use this knowledge to your advantage.
Here are some key strategies for dealing with a deputy's fragile ego:
Remember, a deputy's ego is like a fragile flower. Handle it with care, or it may just wither away.
Step 7-1: The Art of Creating a Fake Deputy - Learn how to create a fake deputy that will serve your purposes.
Step 8-1: Advanced Psychological Warfare - Learn how to push the deputy to the brink of madness.