Diplomats have some of the most powerful abilities in the game.
Can you explain what you mean? Maybe I'm missing something.
The only new options I see are influencing region's sympathy to this or that realm and drafting/signing treaties.
Furthermore, even if you look at it primarily as a class whose purpose is to visit other realms and interact with them, such interactions are supposed to be peaceful. A Diplomat shouldn't have more than a basic personal guard; they wouldn't be leading around a whole legion, as that would likely lead to an international incident.
I agree with the reduced size. But why police designation? It's weird to take the local police on diplomatic missions.
