All models listed in the Tomb Kings army list are Undead.

Note that the Undead special rules for Tomb Kings armies are slightly different from those for the Vampire Counts armies due to the differences in the magic animating them.

All Undead have the following special rules:

The General

The army must include at least one Tomb King or Tomb Prince, who will be the army's General. If the army includes more than one Tomb King or Prince, the one with the highest Leadership will be the General. In the case of two or more characters having the same Leadership value, the player can decide which will be the General. Remember to tell your opponent which model is the General at the beginning of the battle.

The Hierophant

The army must include at least one Liche Priest or High Priest who will be the army's Hierophant, the one responsible for the awakening of the entire army from their ancient slumber.

If the army includes more than one Liche Priest or High Priest, the one with the highest Leadership will be the Hierophant. In the case of two or more characters having the same Leadership, the player can decide which is the Hierophant. Remember to tell your opponent which model is the Hierophant at the beginning of the battle.

If the Hierophant is destroyed, the Undead in the army will start to slowly crumble to dust. To represent this, at the end of the phase when the Hierophant is killed, and at the beginning of every Undead turn thereafter, all Undead units on the battlefield must take a Leadership test. If the test is failed, the unit suffers a number of wounds equal to the number they failed the Leadership test by. No saves of any kind (not even Ward saves or Regeneration) are allowed against such wounds. Eg, a unit of Skeletons (Ld 3) takes the test and rolls a 7 - the unit suffers 4 wounds (7-3=4). Characters never suffer wounds because of a destroved Hierophant. Units can use the Leadership of a character leading the unit for this test or the General's Leadership if he's within 12" as normal. If a character is riding in a chariot and he is not with a unit of chariots, his chariot has to take this test but it can use the character's Leadership value. The Hierophant has to be destroyed (ie, permanently removed from the table) for this rule to take effect.

Break Tests

Undead cannot be broken, but Undead units beaten in combat suffer one additional wound for every point they lose the combat by (no saves of any kind, not even Regeneration or Ward saves, are allowed against such wounds). If characters are present in the unit, or if they are riding in a chariot, the controlling player can decide how to allocate the wounds among the unit, the chariot and the characters. In multiple combats, each Undead unit on the losing side suffers one additional wound for every point their side has lost the combat by. If an Undead unit is wiped out by combat resolution in the first turn of a combat, the enemy gets the option to make an overrun move as normal.

Battle Standard

Undead that are within 12" of their Battle Standard suffer one less wound than they normally would when defeated in combat. Eg, a unit of Skeletons loses a combat by 3. They should lose three extra Skeletons but, because the Battle Standard is within 12", they only lose two models.

Immune to Psychology

Undead are Immune to Psychology.

Cause Fear

Undead cause fear.

Marching

Undead cannot make a march move.

Charge Reactions

Undead can react to charges only by holding.