Assault of Stone

Pick 1 enemy unit wholly within 24'' of the caster
and visible to them, and roll a number of dice
equal to the casting roll.
For each roll that is less than that unit's Save characteristic, that unit suffers 1 mortal wound.
Rolls of 1 or 2 always fail to inflict a mortal
wound on the target. A Save characteristic of '-'
counts as a 6 for the purposes of this rule.