A model with this special rule gains an Invulnerable Save equal to the value listed in brackets. This Invulnerable Save cannot be taken against attacks made with weapons with the Force special rule.
If a model with this special rule suffers an unsaved Wound from an attack that inflicts Instant Death, it only reduces its Wounds by 1, instead of automatically reducing its Wounds to 0.
At the end of each of your turns, roll a D6 for each of your models with this special rule that has less than its starting number of Wounds or Hull Points, but that has not been removed as a casualty or destroyed. On a roll equal to or greater than the number in brackets associated with the special rule, that model regains a Wound, or Hull Point, lost earlier in the game. For example, a model with It Will Not Die (5+) would regain a lost Wound on the roll of a 5 or more.
Bulky models count as a number of models equal to the value X in brackets after the rule’s name for the purposes of Transport Capacity and whether a given unit outnumbers another in combat. For example, a unit comprised of five models all of which have the Bulky (3) special rule, would count as 15 models when attempting to Embark on a Transport Vehicle or when deciding if they outnumber an enemy unit.
A model with this special rule may only be included in an army that has the Traitor Allegiance.
If a model with this special rule ends its Charge Move in base or hull contact with an enemy model, it makes a number of additional attacks equal to the value in brackets listed as part of this special rule.These attacks hit automatically and are resolved at the models unmodified Strength with AP-. These attacks do not benefit from any of the model's special rules (such as Furious Charge, Rending, etc.).These attacks are resolved during the Fight sub-phase at Initiative step 10 but do not grant the model an additional Pile-in Move. If a model with this special rule Charges a Vehicle of any kind or a Building, the hits are resolved against the Armour Value of the Facing the charging model is touching. If the model is in contact with two or more Facings, the player controlling the target model chooses a Facing upon which the attacks are resolved. If a model with this special rule Charges a Building or Vehicle that is a Transport, the hits are resolved against the Building or Vehicle, not the unit Embarked within the Building or Vehicle.