Acastus Knight Porphyrion

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 a unit with this ability makes a **normal**, **advance** or **fall-back move**: 
- Models in that unit can move through models (including **MONSTER/VEHICLE** models, but excluding **TITANIC** models) and can move horizontally through sections of **terrain features** that are 4" or less in height. 
- Before moving that unit, you can select for all models in that unit to have the **MOBILE** keyword until that move ends. If you do, when that move ends, roll one D6: on a 1, that unit is battle-shocked. 
***Designer’s Note:** Gaining the **MOBILE** keyword for the duration of a move will enable models in that unit to move horizontally through **dense terrain features** (13.06).*

If your Army Faction is **^^Imperial Knights^^**, at the end of the Read Mission Objectives step, you must determine your army's Oath for the coming battle. An Oath consists of two parts - one Deed and one Quality. There are three options for each part.

To determine your army's Deed, you can either select one Deed or you can randomly select one Deed by rolling a D6 and consulting the relevant table. The selected Deed will describe what needs to be achieved in order to complete that Deed.

To determine your army's Quality, you can either select one Quality or you can randomly select one Quality by rolling a D6 and consulting the relevant table. Until the end of the battle, the ability described in the Quality selected applies to all models in your army with this ability.

The first time your selected Deed is completed your Oath is fulfilled and, until the end of the battle, your army becomes Honoured and you gain 2CP, or 3CP if you randomly selected your Deed and/or Quality (CP gained in this way are an exemption to the Core Rules that limit the maximum number of CP you can gain per battle round to 1).

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].*