Flay Them Alive

Use this Stratagem in the Fight phase, when
an enemy unit is destroyed as a result of an attack made by a NIGHT LORDS model
from your army. Until the end of the turn,
when a Morale test is taken for an enemy
unit within 12" of that NIGHT LORDS
unit, your opponent must roll one additional D6 and you can choose one of
those dice to be discarded.