Space Marine Rapier Weapons Battery

When the Rapier loses its last wound, roll a D6. If the result of this roll is 2-6 then remove the Rapier as a casualty as normal.  If the result of the roll is a 1 then place a Large Blast template onto the table, centered on the Rapier. All models, friendly and enemy, under this template take a single S3 AP- hit.  Once these hits are resolved, remove the Rapier as a casualty as normal.