Unenchanting Rage. If a creature casts a spell that causes Kurúver to suffer a condition, Kurúver's rage will allow him to add an extra 4 (1d4+2) damage to his next action if he does an attack next turn. The creature who cast the spell is also frightened.

Dark Sludge. If Kurúver's health is down to half or less, he will cover himself in dark sludge. His AC is now 17 instead of 16 until the end of combat.

Dark Recharge. Every third turn, Kurúver recharges 3 1d6 health.

Multiattack. Kurúver does one attack with his Claw and one with his Corruptive Ray.

Life Drain. Kurúver gains 5 (1d8 + 1) health for each creature within 8 feet of him that is not a Fiend, Undead, or Monstrosity. The creatures must do a constitution save and take 6 (2d6) necrotic damage on a failed save and 3 (1d6) on a successful one.

Necrotic Slash. Melee Weapon Attack: +6 to hit, reach 8 ft., 1 target. Hit: 16 (2d8 + 8)]"}[/rollable] [slashing] damage and [(2d6 + 2) ] necrotic damage.

Demon Claw. Melee Weapon Attack: +6 to hit, reach 8 ft., 1 target. Hit: 24 (4d8 + 6) [slashing] damage.

Corruptive Ray. Ranged Weapon Attack: +4 to hit, range 20/30 ft., 3 targets. Hit: 14 (4d6) [necrotic] damage.