Tomb Swarm

All units with Undead have Animated Construct, Fear, and Unstable. However, they may make march moves if they are joined by a character with My Will Be Done or Sworn Bodyguard.

Unstable units are Unbreakable, and suffer one extra Wound for every point they have lost of the round of combat by, with no saves of any kind permitted against these wounds. If an Unstable unit would normally be eligible to be Steadfast, they instead suffer 1 less Wound than they would normally do.

Unlike Unbreakable units, Unstable characters may join Unstable units. If an Unstable unit also contains Unstable characters, the controlling player first allocates wounds to the unit, then divides any remaining wounds (if any) as equally as possible amongst the characters.

A model with Poisoned Attacks gains a +1 modifier to any To Wound rolls. Armour saves are modified by the Strength of the attack as normal.

Unless otherwise stated, a model with this rule has both Poisoned shooting and close combat attacks. Any spells cast by the model are unaffected, as are any special attacks or attacks made with magic weapons they might be wielding, whether they be shooting or close combat attacks.

A unit with this ability has Ambushers, with the following exceptions.

When these units enter the battle in the Remaining Moves sub-phase, they do not move onto the board as reinforcements in the normal way. Instead, when a unit that is Entombed Beneath the Sands enters the battle, place a small marker (such as a coin) anywhere on the battlefield, but not in impassable terrain or within 1" of a deployed unit.

Roll a scatter dice and an artillery dice. If you roll a Hit on the scatter dice, the marker stays in place. If you roll an arrow, move the marker the number, in inches, indicated by the artillery dice in the direction shown. If the marker is under a friendly unit, impassable terrain or a building, place it 1" away from the closest edge of the unit/terrain.

Once the final position of the marker is established, place the emerging unit in a legal formation such that it touches the marker, facing any direction. If the marker is under an enemy unit, you may place your unit into base contact with the enemy unit in their front arc; your unit will counts as charging this turn.

If you roll a misfire, or if for any reason some of the models in the unit cannot be placed, then the unit does not emerge. Instead, remove the marker and roll on the Mishap table. If a unit emerges successfully, it may act normally this turn.

Only characters that have Entombed Beneath the Sands can be deployed within such units. If you have several units Entombed Beneath the Sands, then repeat this process, one unit at a time.

Skirmish Formation
Skirmishers are deployed in a 'loose' formation, where the models are not placed in base contact, but are positioned roughly 1/2" apart. The models in the unit must still face the same direction and the unit will still have a front, two flanks and a rear. All Skirmishers in a unit do not count as blocking each other’s Line of Sight. As long as you can draw a Line of Sight from the front rank to the target, the second and subsequent ranks may fire too.

When moving Skirmishers, you should measure from the location of each model before it moves and place it anywhere within its M Allowance (or double its M Allowance if it is marching), except when there is a unit or impassable terrain in the way, the distance moved must include the distance required to move around these obstacles.

Vanguard
Skirmishers (except models with Fly) automatically have Vanguard.

Skirmishers and Charging
If skirmishers declare a charge (or a charge reaction that does not involve fleeing) they tighten their loose formation into a 'normal' formation after the charge distance is rolled and the chargers are moved. This happens 'for free' at the moment both units move into base contact. The unit immediately forms up in base contact around the centremost model in the front rank (the Skirmishers' controlling player can choose which if the front rank has an even number of models) that is also in base contact with the enemy.

The number of ranks, files and the formation's facing do not alter as the Skirmishers tighten up – all that happens is that models that were previously spaced out are now in base contact with one another. This has the effect of rendering the Skirmishers' loose formation into a regular shape so that other units can fight them in the normal way.

If the Skirmishers are not in base contact with an enemy in the Remaining Moves sub-phase, the controlling player must move them apart so that they readopt their loose formation.

Free Reform
A unit of Skirmishers moves, wheels, marches and charges just like other troops. However, unless it charges, a skirmishing unit is allowed to reform twice during its move; once before they move, and at the end of their move. The unit may do this even if it marches, provided that no model ends up moving a number of inches higher than double its M value.

Feigned Flight
A unit of Skirmishers that chooses Flee as a charge reaction does not cause Panic from fleeing through friendly units and automatically rallies in its next Compulsory Movement Phase. In addition, it is then also free to move during the remaining moves part of the Movement phase. The unit is also free to shoot as normal (but always counts as having moved). Note that if the flee move of the Skirmishers do not take them beyond the charge reach of their enemies, the unit suffers casualties as normal.

Fire on the March
Skirmishers can shoot even if they marched or reformed earlier in the turn (providing their weapon doesn't have Move or Fire). However, the normal -1 To Hit penalty for moving and shooting still applies.

Light Troops
All shots aimed at a unit of two or more Skirmisher models with an individual Unit Strength of 2 or less suffer an additional -1 To Hit penalty. Skirmishers always counts as having zero ranks, and therefore cannot claim a rank bonus. In addition, they cannot be Steadfast regardless of their Unit Strength (unless they also have Stubborn).

Characters
A character model that joins a unit of Skirmishers gains Skirmisher as long as they stay with the unit. Characters may only join Skirmishers with the same Troop Type as them.