PSYBOLT AMMUNITION

Use this Stratagem in your Shooting phase, when
a GREY KNIGHTS unit from your army is
selected to shoot. Until the end of the phase,
each time a model in that unit makes a ranged
attack with a bolt weapon: An unmodified hit
roll of 6 automatically wounds the target.
Improve the Armour Penetration characteristic
of that attack by 1. If this unit has 6 or more
models, this Stratagem costs 2CP; otherwise,
it costs 1CP.