Corvus Blackstar

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 **takes to the skies** (21.03), do not subtract 2" from the **maximum distance**.

If every model in a unit has this ability, each time a ranged attack targets that unit, that unit has the **benefit of cover** against that attack (13.08).

At the start of your Command phase, you can select one Combat Doctrine listed below. If you do, that Combat Doctrine is active for friendly ADEPTUS ASTARTES units with this ability until the start of your next Command Phase


Assault Doctrine
When this unit is selected to make an Advance move, that Advance move does not prevent this unit from being eligible to declare a charge. 


Devastator Doctrine
This unit's ranged attacks have [ASSAULT]


Tactical Doctrine
When this unit is selected to make a Fall-back move, that Fall-back move does not prevent this unit from being eligible to shoot and eligible to declare a charge. 


Unless otherwise stated. 
- You can only select each Combat Doctrine once per battle
- Only one Combat Doctrine can be active for each unit. If a rule make a Combat Doctrine active for a unit, any Combat Doctrine previously active for that unit is no longer active for that unit. 

This ability always takes the form **Damaged X**. While a model's remaining wounds are equal to or less than **X**, that model is **damaged**:
- While a model is **damaged**, that model's attacks have -1 to **hit rolls**.