Undead are usually raised with the abilities or knowledge they had in their past lives. They can be any race giving them almost endless possibilities. If they were light elves, what used to be their light magic becomes dark necrotic magic allowing the user to cause decay to other life forms.
Undead are weak to sunlight, light magic, and fire magic.
They are more resistant to cold and water magic.
All undead are loyal to and under Aklenroth and cannot disobey any order given to them by him.
They can be found mostly near Aklenroth's Morteum.