Abyssal Hunger. You feast on the strength of your foes. Your weapon attacks deal an extra 1d4 necrotic damage on a hit. When you score a critical hit on a creature, you regain a number of hit points equal to the necrotic damage dealt.
Dark Affinity. You become comfortable in the most inhospitable circumstances. You gain resistance to cold, fire, and lightning damage.
Dread Warrior. You erode the willpower of any in your path. Once during each of your turns when you hit a creature with an attack roll, you can force the target to make a Wisdom saving throw or become frightened of you until the end of your next turn.
Evil's Reach. Your arms lengthen into violent, thrashing appendages. Your weapons and unarmed strikes gain the reach property.
Horrid Protrusions. Writhing black tentacles emerge from your flesh. Once per turn when you are damaged by a creature within 5 feet of you, you can force them to make a Dexterity saving throw or be grappled by you. You cannot grapple another creature this way until the grapple ends.
Profane Carapace. Chitinous plates form over your skin. You gain a +1 bonus to AC while you are not wearing armor.
Bloodwings. Great demonic wings sprout from your back. You gain a flying speed equal to your walking speed.
Cursed Betrayal. When you reduce a creature to 0 hit points, you can force it to make a weapon attack against another creature of your choice before it falls.
Pain Spreader. When you take damage, you can use your reaction to force each creature of your choice that you can see within 10 feet of you to make a Dexterity saving throw or take 2d6 cold, fire, or lightning damage (your choice each time you use this ability).