Snow White Hills Blood Bowl Chronicles

They appear to cling to their Undead status by sheer willpower. Their magic is irrelevant; whatever petty dabblings they may have indulged in during their lives have clearly failed, or else they would still have a corporeal form. It is only their twisted spirit, wracked with hatred and pain, that keeps them in this world at all, and only by the most tenuous threads. Without their desperate clinging to whatever cursed form of immortality they have, without their conviction that either they have succeeded or else have a chance still to succeed in their quest to become Undead Necromancers, it seems they would simply wither away to nothingness, their last fragmentary existence scattered to the four winds.: — Heinrich Malz, High Priest of Verena, Nuln.