Slay Living

You can attempt to slay any one living creature. When you cast this spell, your hand seethes with eerie dark fire. You must succeed on a melee touch attack to touch the target. The target takes 12d6 points of damage + 1 point/caster level. If the target's Fortitude saving throw succeeds, it instead takes 3d6 points of damage + 1 point/caster level. The subject might die from damage even if it succeeds on its saving throw.