Chiera, Knight of the Forgotten

Undead's Revenge. All of Chiera's weapon attacks do an extra 4d8 necrotic damage (included in attack).

Innate Spellcasting. Chiera's innate spellcasting ability is Charisma (spell save DC 18, +10 to hit with spell attacks). She can cast the following spells, requiring no material components:
At will: vicious mockery, searing smite, ice knife
3/day each: branding smite, blinding smite, spirit shroud (necrotic only), blade barrier, circle of death
1/day each: staggering smite, banishing smite, destructive wave, finger of death

Multiattack. Chiera makes three attacks with her greatsword. 

Greatsword of the Damned. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit:  13 (2d6+6) slashing damage and 18 (4d8) necrotic damage. 

Heavy Crossbow. Ranged Weapon Attack: +9 to hit, range 100/400 ft., one target. Hit: 8 (1d10 + 3) piercing damage and 18 (4d8) necrotic damage. 

Denial of Death. (3/day): Chiera blasts necrotic energy. Each creature in a 30 foot cone must make a DC 17 CON save, taking 36 (8d6) necrotic damage on a failed save and half on a successful save. Chiera regains hit points equal to the damage rolled. 

Ethereal Jaunt. Chiera can shift into the ethereal plane. She shifts out at the start of her next turn.

Teleport. Chiera can teleport up to 120 feet.

Ethereal Calling. Chiera can teleport up to 30 ft.