The Ghost King

[IKerensky]

Death 4:

Blessing weak fear effect.
Access to nearly all good death spells.
Better effect and less fatigue for drain and thus...

1 more scale:

Well can help if magic for research otherwise could be helpfull for the province that will be in your dominion... The more province you have the more efficient it is but the less important overall.

Frankly I will buy Death 4.