Arcane Corrasion

Awave of aetheric energy hurled at the foe.
If successfully cast, pick the closest enemy
unit within 48" of the caster and measure the
distance between the caster and the unit.
If the distance is up to 12" , the target suffers 1
Mortal Wound. If the distance is more than 12"
and up to 24" it suffers 2 Mortal Wounds instead.
If the distance is more than 24" and up to 36" it
suffers 3 Mortal Wounds instead.
If the distance is more than 36" and up to 48" it
suffers 4 Mortal Wounds instead