You learn 1 eldritch invocation from the Warlock class.
When you reduce a creature to 0 hit points, you gain temporary hit points equal to the CR rating or the character level multiplied by 3. One you use this feature, you cannot use it again until you finish a long rest.
When you hit a creature with an attack, you can cause the attack to deal additional 2d6 necrotic damage. The creature must then make a CON save (DC 14). On a failure, the creature's maximum hit points is reduced by equal to the necrotic damage dealt until after it's next long rest. You must finish a short or long rest to regain the use of this feature again.
Comments