If you just start a regular campaing with the default settings as Nagash, thing make absolutely no sense:
By default the "End Times" can happen around turn 100, by this time you will maybe have two to three mortachs unlucked. Fine, you can adjust that in that campaign setting. Your fault for not knowing that.
... but even after that things get silly.
Here are some of the Mortrach requirments:
To unlock a special hero necromancer: oh build up a city far off from your capital (yes there is a teleport) to level 5, and get like ten elite units. By the way, the guy recruits at level 1 by default. Enjoy him in turn 100, I guess?
Oh one of the easier Mortarchs is Luthor. His faction is so


