Great Unclean One

While a friendly Plague Legions unit is within 6" of this model, add 1 to the Toughness characteristic of models in that unit.

At the end of your Movement phase, you can select one enemy unit within 12" of this model. Until the start of your next Movement phase, that unit is rotted. While a unit is rotted, subtract 1 from the Toughness characteristic of models in that unit.

While this model has 1-7 wounds remaining, each time this model makes an attack, subtract 1 from the Hit roll.

This ability always takes the form Deadly Demise X. Each time a model in this unit is destroyed, after the units embarked within it (if any) have made their emergency disembark moves, roll one D6. On a 6, that model suffers a deadly demise; each unit within 6" of that model suffers a number of mortal wounds denoted by X (if this is a random number, roll separately for each unit within 6").  Example:* An Impulsor with a unit of Intercessors embarked within it is destroyed by ranged attacks. First, any unresolved attacks made by the attacking unit are resolved. Then the Intercessors make an emergency disembark move. Then the roll is made for the Deadly Demise* ability, and on a 6, that ability is resolved. Finally, the Impulsor is removed from the battlefield.

Each time this unit makes an ingress move (20.04), if every model in this unit has this ability, it can be set up anywhere on the battlefield that is more than 8" horizontally from all enemy units, even if that is within your opponent’s deployment zone.

This ability always takes the form Feel No Pain X+. Each time a model with this ability would lose a wound, roll one D6: on an X+, that wound is not lost. 

Each time an attack is made with an [IGNORES COVER] weapon, the target cannot have the benefit of cover against that attack (13.08), including from rules that give a model or unit the benefit of cover (e.g. Stealth).

Each time an attack is made with a [TORRENT] weapon, that attack automatically hits the target.

Each time a unit containing one or more models with an [EXTRA ATTACKS] weapon fights, those models will make attacks with those weapons in addition to any others. In the Select Weapons step (04.01), for each of those models, you must select:  - All of that model’s [EXTRA ATTACKS] weapons.  - One of that model’s other melee weapons, if possible.

Each time an attack made with a [LETHAL HITS] weapon results in a critical hit, you can choose for that attack to automatically wound the target.  Designer’s Note:* Choosing to automatically wound the target means that no wound roll is made for that attack. You may decide against this, as it means that attack cannot result in a critical wound* and so cannot trigger other abilities such as [DEVASTATING WOUNDS].