Those who turn from the light and find themselves entranced by the lure of necromantic power would heed well the tale of Ilken Lillett; A testament to the sacrifices which must be made to attain such power.
A spirit of judgement and punishment
Some people oppose change. Some people cause change. Jaith is the message of change to come.
Blood, biles black and yellow and phlegm, these are the four vital humours that govern our bodies. Understand them, and health is a simple matter.
St. Gray of Galen, Lectures
The sun has set upon the Kingdoms of Men, may night have mercy on us…
Opening Quote of the Book of the Black Rose
A certain type of demon cannot not be hit by ranged weapons or attacks. Attacks have to be made up close and personal for the damage to mean something. Ranged attacks are to impersonal.
Possibally a way to make the ranged attacks more meaningful would be to coat the arrow head or what not with the shooters blood. Of course, they'd better be a good shot, otherwise they're wasting arrows and already bleeding to boot.
Spells: wizards might have half or no effect, preist might work due to divine intention.