Raveners

Unless a unit with this ability is within 24" of any friendly Synapse unit, you must subtract 1 from any hit rolls made for it when shooting any target other than the nearest visible enemy unit, and you must subtract 2 from its charge roll if it declares a charge against any unit other than the nearest enemy unit.

During deployment, you can set up this unit underground instead of placing it on the battlefield. At the end of any of your Movement phases, the unit can burrow to the surface - set it up anywhere on the battlefield that is more than 9" away from any enemy models.