Absolute Corruption

You touch a creature with both hands. If the creature is at maximum hp, if the creature is any alignment other than Chaotic Evil, or if the creature has committed a good act in the last 10 days, the creature takes 100 Hit Points of Necrotic damage. If your Hit Points are at your Hit Point maximum, if you are not Chaotic Evil, or if you have committed a good act in the last 10 days, you take 100 Hit Points of Necrotic damage. 

Necrotic damage from this spell cannot be resisted. A creature immune to Necrotic damage takes half damage from this spell instead. 

"They say absolute power corrupts absolutely. I feel like there are easier ways."