Penance Stare

As an Action you can look directly into a target's soul, forcing a creature within 10 feet of you to stare into the depth of the 9 hells consuming you. The target must succeed a wisdom saving throw or take 5d8 fire damage and 5d8 radiant damage and be incapacitated until the beginning of your next turn on a failure. Once a creature  fails their saving throw against the ability you cant use it again until you take a long rest.