Perhaps not what you are after, but a necromancer is actually just a being who communicates with the dead. Mancer, the suffix is Greek for divination, which, used with Nero is divining info from the dead, normally about future events. So if they were saying it accurately, which in all fairness they almost certainly were not, he would call up spirits and they would just kinds be chilling, talking lots. Not a great army.

Perhaps not what you are after, but a necromancer is actually just a being who communicates with the dead. Mancer, the suffix is Greek for divination, which, used with Necro is divining info from the dead, normally about future events. So if they were saying it accurately, which in all fairness they almost certainly were not, he would call up spirits and they would just kinds be chilling, talking lots. Not a great army.