Mask of Death

Since it is the duty of the Necromancers to prepare the dead for service to Lithos, it would probably offend him if his own legion of the undead is attacked by one of his order, even if only in self-defense. To avoid these possible complications, Mask of Death temporarily makes the undead ignore the Necromancer, since they think him or her as already dead.

Thus, combat can be avoided entirely with them for the duration of about 60 seconds.