Caim "Reverence"

Gatling (Recharge 4-6). Reverence continues his flurry of blows, allowing him to make another two strikes with Nevermore.

Israfel. Reverence's raven familiar Israfel is an extension of Nevermore. In addition to the boons granted by the Find Familiar spell Reverence can forego one of his own attacks, allowing Israfel to attack in his stead. Being unable to die, whenever Israfel hits 0 hit points, it becomes incapacitated for 3 rounds, at the end of which it regains all it's lost hit points. Whenever Reverence gains or loses temporary hit points, Israfel gains or loses the same amount of temporary hit points. Israfel uses the raven stat block with the addition of 60 feet of Truesight. Israfel disappears if Reverence dies or if he unattunes from Nevermore.

When a creature cursed by Reverence's Hexblade's Curse dies, instead of regaining the temporary hit points, Israfel can dive into the body latching onto the soul and transforming into a twisted, raven-like specter. Israfel then gains 18 temporary hit points and takes it's turns at the end of Reverence's. Israfel gains a +4 bonus to its attack rolls. Like in its Raven form, Israfel grants Reverence temporary hit points when it hits as part of Nevermore's attack. Israfel maintains this form until the end of Reverence's next long rest, at which point it reverts to a raven and lets the soul vanish.

The Way Back. Reverence can expend a spell slot when he's reduced to 0 hit points (no action required) to have 1 hit point instead.

Wings of the Reaper. On his turn, Reverence can expend 10 temporary hit points to let the spirit of death merge with his. Israfel flies into his chest, magically disappearing as two black raven wings erupt on his back as he gains a flying speed of 60. As long as Reverence is affected by this boon his attacks with Nevermore cause him to gain 15 temporary hit points. In addition, he deals an extra 10 necrotic damage. As long as Reverence can fly in this manner, he takes 10 necrotic damage at the start of each of his turns. He can dispel the wings, causing Israfel to erupt out of his chest as a bonus action. 

Hexblade's Curse (1/rest). The ability to place a baleful curse on someone. As a bonus action, Reverence may choose one creature he can see within 30 feet of him. The target is cursed for 1 minute. The curse ends early if the target dies, he dies, or he is incapacitated. Until the curse ends, Reverence gains the following benefits:

• Reverence gains a bonus to damage rolls against the cursed target. The bonus is +5

• Any attack roll Reverence makes against the cursed target is a critical hit on a roll of 19 or 20 on the d20.

• If the cursed target dies, Reverence regains 22 hit points.

Birds of a Feather. As an action, Reverence can call Nevermore back to his hand. Additionally, the weapon disappears, leaves his person for a minute or more, or if he dies. If Reverence dies, he can no longer summon Nevermore to his hand until he re-attunes with the arm by spending a short rest with it on his person.

Spellcasting. Reverence is an 18th-level spellcaster. His spellcasting ability is Wisdom (spell save DC 17, +9 to hit with spell attacks). Reverence knows the following Warlock spells:
Cantrips (at will): Eldritch Blast, Sword Burst, Minor Illusion, Dancing Lights, Mage Armor, Find Familiar, Detect Magic, Speak with dead

1st level - 5th level (4 slots): Armor of Agathys, Hellish Rebuke, Mirror Image, Ray of Enfeeblement, Hypnotic Pattern, Remove Curse, Spirit Shroud, Vampiric Touch, Charm Monster, Dimension Door, Contact Other Plane, Negative Energy Flood, Wall of Light, Scrying

1/day each: slow, Mental Prison, Plane Shift, Glibness, Imprisonment

Multiattack. Reverence makes 2 attacks with Nevermore or 2 with his Unarmed strikes.

Nevermore. Melee Weapon Attack: +11 to hit, reach 5 ft., 1 target. Hit: 11 (1d10 + 5) slashing damage plus an additional 4 necrotic damage. Whenever Reverence hits with Nevermore, he can silently command his raven familiar to make two attacks as a bonus action. The raven deals damage equal to Nevermore. When the raven deals damage, Reverence gains 10 temporary hit points.

Unarmed Strike. Melee Weapon Attack: +11 to hit, reach 5 ft., 1 target. Hit: 11 (1d10 + 5) bludgeoning damage.

Bury the Light. Reverence can expend from 5 to 50 temporary hit points when he touches a creature. That target must then make a (DC 17) Constitution saving throw, taking 2d10 necrotic damage per 5 temporary hit points spent on a failed save, or half as much on a successful one. 

Armor of Hexes. If a target cursed by Reverence's Hexblade's Curse hits him, he rolls a d6. On a roll of 4 or higher, the attack instead misses him, regardless of its roll.

March of the Witch Hunters (4/day). Anytime Reverence's Temporary hit points are depleted, he regains 2 Warlock spell slots.