Your army must include at least one Nehekharan Undead Wizard to be the army’s Hierophant. If your army includes several Wizards, this will be the one with the highest Wizard Level. If two or more models have the highest Wizard Level, choose which of them will be the Hierophant. Remember to tell your opponent which one is the Hierophant at the start of the battle. The Hierophant must use the Lore of Nehekhara. The Hierophant, and all models in the same unit, have the Regeneration (6+) special rule.
At the end of the phase in which the Hierophant is removed as a casualty, and at the start of every friendly turn thereafter, all friendly Nehekharan Undead units on the battlefield must take a Leadership test. If the test is failed, the unit immediately suffers a number of Wounds equal to the amount by which it failed the Leadership test, with no saves of any kind allowed.