Death Lord Powers should be a template based upon the undead subtypes.
Specifics?
Each Death Lord might have a different combination of powers relating to their strengths or intrests.
Common powers. Minions.
Ability to "invest" some undead to higher intelligence or "invested power". Their should be a numerical limit of these in scale to the inidividual power of the death lord. These Invested minions can communicate over rgeat distances, possible share spells, etc. But they Perish if their master perishes. The "Taken" are subject to their masters will.
Edit please post these to the Death Lord powers thread. I cannot access threads that I have not created on my TypePad page.