Ashnaskar

Hexblades Curse. Once per short rest, as a bonus action, Ashnakar can choose one creature he can see within 30 ft. to curse it for 1 minute (or until the target dies, he dies, or is incapacitated). Against the cursed target, he gains a +5 bonus to damage rolls, score a critical hit on a roll of 19 or 20, and regains 18 HP if it dies. As a bonus action, Ashnakar can magically teleport up to 30 ft. to an unoccupied space he can see within 5 ft. of the target cursed by the hex spell or Hexbaldes curse.

Two Minds of Madness. Ashnakar has advantage on all intelligence, charisma, and wisdom saving throws.  

Sunlight Sensitivity. Ashnakar has disadvantage on attack rolls and on Perception checks that rely on sight when he is in or his target, or whatever he is trying to perceive is in direct sunlight.

Spellcasting. Ashnaskar is a 13th level spellcaster. His spellcasting ability is charisma (spell save DC 18, +10 to hit with spell attacks). Ashnakar has following warlock spells prepared:
Cantrips (at will):  booming blade,  Eldritch blast,  friends,  dancing lights,  disguise self

5th level (3 slots):  Banishing Smite, Cone of Cold, Counterspell, Fly, Hex, Hold Person, dimension door, Summon Greater Demon, fireball, misty step,

Once per day. Faerie Fire, Darkness, mass suggestion, Finger of Death

Multiattack. Ashnakar can make 2 attacks with his long sword Mind Render or fire 3 eldritch blasts. 

Mind Render. Melee Weapon Attack: +12 to hit, reach 5 ft., 1 target. Hit: 12 (1d10 + 7) slashing damage, plus 5 (1d10) psychic damage. when scoring critical hits with Mind Render the target is subjected to the confusion spell, there is no initial save for this effect. The target can make a DC 18 wisdom save at the end of each of their turns, otherwise the effect ends after a minute, or if dispelled.

Eldritch Blast. Ranged Weapon Attack: +10 to hit, range 120 ft., 1 target. Hit: 10 (1d10 + 5) force damage.

Armor of Hexs. If the target cursed by Ashnakar's Hexblade’s Curse hits him with an attack roll, he can use his reaction to roll a d6. On a 4 or higher, the attack instead misses you, regardless of its roll.