In your Shooting phase, each time you select a target for this model’s twin tesla destructor, roll one D6 for the target unit and one D6 for every other enemy unit within 3" of the target unit. On a 5+, the unit being rolled for is struck by arcing energies; after resolving all of this model’s attacks against the target unit, each unit struck by arcing energies suffers D3 mortal wounds.