This was all I needed.
Red Hand of the Fel
Discipline: Sandbox Goliath (Strike)
Level: 9
Prerequisites: Five Sandbox Goliath maneuvers
Casting Time: 1 standard action
Range: Melee touch attack
Target: One creature
Saving Throw: Fortitude Half
You make a gesture with your hand and become shrouded in shadow. Your prey begins to panic, but it's too late. They're already dead.
Description
As part of this maneuver, you make a single melee touch attack. If you hit, you deal normal melee damage plus an extra 2d8 + your constitution modifier of permanent constitution damage. You must make an intimidate check upon dealing damage, this becomes the save for half damage.
You beat me to it! You sly devil, you. My thanks are to you!