Assault of Stone

Assault of Stone has a casting value of 8. If successfully cast, 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.