CONCUSSION GRENADE

Use this Stratagem in your Shooting phase, when choosing a unit of Allarus Custodians from your
army to attack.
Until the end of the phase, their balistus grenade launchers have an AP characteristic of 0, and
INFANTRY units that are hit by these attacks
are stunned until the end of the turn they
cannot fire Overwatch and your opponent must subtract 1 from hit rolls made for the unit.