Thornbacks

When a Thornback finishes a charge move, roll a dice; on a 4+ one enemy unit with 1" suffers a mortal wound. INFANTRY units instead suffer D3 mortal wounds. In addition, add 1 to all hit rolls in the Fight phase for a Thornback that charged in the same turn.

Enemy INFANTRY units never gain any bonus to their saving throws for being in cover against attacks made by a Thornback.

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.

The first time this unit is set up on the battlefield, all of its models must be placed within 6" of at least one other model in their unit. From that point onwards, each operates independently and is treated as a separate unit.