Stream of Corruption

Range of 7". If successfully cast, pick 1 enemy
unit within range and visible to the caster. Roll
1 dice for each model in that unit that is within
range of the caster. For each 5+, that unit suffers
1 mortal wound.
Before attempting to cast this spell, you can say
that the caster will project the stream across a
greater distance. If you do so, the spell has a
range of 14" but only inflicts 1 mortal wound
for each roll of 6 instead of each roll of 5+.