The Overlord has absolute power over his subjects. He literally can end them with a thought. All subjects are forced to serve his will due to Natural Thinkamancy. The Overlord decides what city production, can promote units to Warlords, and can designate an Heir. The Overlord chooses the Chief Warlord, but can command his Side's Turn if necessary.
Known Overlords and their Heirs
- Charlie (current Overlord)
- heir: unknown, if any
- King Saline IV (succeeded by Stanley the Tool, croaked)
- Stanley the Tool (current Overlord)
- heir: no heir named
- Don King (current King)
- heir: unknown
The heir of a side is usually the Chief warlord and vice-versa. From the three known heirs, Ansom, Stanley, Jillian, the former two were also Chief Warlord. It also makes a lot of sense to combine the two positions: a chief warlord is the second most powerful unit of a side and has a lot of influence in military and diplomatic strategic and acts in many ways as replacement for the overlord. Also the chief warlord is by definition and natural thinkamancy the most loyal person and therefore less likely to plan regicide.
It is possible that the correct technical term for this position is "Ruler", based on recent edits to the Wiki by Rob Balder (see Gem). Confusion may have come from Parson learning facts temporally. Initially, he knew only of Stanley, an Overlord, so the fifth Klog spoke of Overlords. Later, he learns that Overlords are Rulers that are not Royal, and so the more general term Ruler is introduced Klog 10. Some people may not have recognized that change in learning, and so felt Overlord was the correct terminology.