From The Night

Use this Stratagem at the start of your Charge
phase. Select one NIGHT LORDS INFANTRY
unit from your army that is entirely on or
within a terrain feature. Until the end of the
turn, when a charge roll is made for that unit,
add 2 to the result, and when resolving an
attack made with a melee weapon by a model
in that unit, add 1 to the hit roll.
The sons of Nostramo strike from the dark.