Defiler

Each time this unit makes a Normal, Advance or Fall Back move, it can move through models (excluding Titanic models) and terrain features. When doing so, it can move within Engagement Range of enemy models, but cannot end that move within Engagement Range of them, and any Desperate Escape test is automatically passed.

Each time you target this unit with the Fire Overwatch Stratagem, hits are scored on unmodified Hit rolls of 5+ when resolving that Stratagem. For each of those attacks that targets an enemy unit within 9" of one or more Thousand Sons Psyker units from your army, a hit is scored on an unmodified Hit roll of 4+ instead.

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.

While this model has 1-6 wounds remaining, each time this model makes an attack, subtract 1 from the Hit roll.

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 you gather attack dice for a [BLAST] weapon, add one additional attack dice for every five models that were in the target unit in the Select Targets step (rounding down). If this ability takes the form [BLAST X], each time you gather attack dice for such a weapon, add X additional attack dice for every five models that were in the target unit in the Select Targets step (rounding down) instead.  Example:* If a [BLAST 2] weapon with an A characteristic of 3 targets a unit containing 12 models, you would gather four additional attack dice* for that weapon (for a total of seven for that weapon).

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.

This ability always takes the form [MELTA X]. Each time a model makes an attack with a [MELTA] weapon, if the target unit was within half range of that weapon in the Select Targets step, until the attacking unit’s attacks have been resolved, add X to that weapon’s D characteristic.  Example:* A model targets a unit that is within half range of a [MELTA 2] weapon with a D characteristic of D6. While resolving those attacks, that weapon has a D characteristic of D6+2**.