Living Lightning

If manifested, the closest visible enemy unit
within 18" of the psyker suffers D3 mortal
wounds. If that unit is destroyed as a result,
the closest enemy unit within 18" of the last
model from that unit to be removed suffers
D3 mortal wounds, and so on until a unit is
not destroyed or there is no enemy unit within
18" of the last model in the destroyed unit.