Arch-shadow Onyx Ranenta

Legendary Resistance (3/Day). If the Arch-shadow fails a saving throw, she can choose to succeed instead.

Spellcasting. The Arch-shadow Onyx Ranenta is an 20th-level spellcaster. Her spellcasting ability is [Intelligence]. Spell save DC 20, +12 to hit with spell attacks. The Arch-shadow has the following wizard and warlock spells prepared:

Cantrips (at will): [Chill Touch], [Sword Burst], [Poison Spray]

1st level (5 slots): [Cause Fear], [Frost Fingers], [Ray of Sickness]

2nd level (5 slots): [Acid Arrow], [Darkness], [Shadow Blade]

3rd level (5 slots): [Dispel Magic], [Lightning Bolt], [Vampric Touch]

4th level (5 slots): [Black Tentacles], [Charm Monster], [Shadow of Moil]

5th level (5 slots): [Cone of Cold], [Negative Energy Flood], [Wall of Stone]

6th level (4 slot): [Disintegrate], [Globe of Invulnerability]

7th level (4 slot): [Finger of Death], [Reverse Gravity]

8th level (3 slot): [Feeblemind], [Abi-Dalzim’s Horrid Wilting]

9th level (2 slot): [Blade of Disaster], [Meteor Swarm]

Turn Resistance. The Arch-shadow has advantage on saving throws against any effect that turns undead.

Bloodreaper. 3/day with 10 minutes of rest between, Onyx can change into her legendary wild avatar, Bloodreaper. Onyx maintains all of her current ability scores and modifiers, but gains 300 temporary hit points. When this form is reduced to 0 hit points, she reverts bac to her humanoid form in the same condition as she was before, transferring over any left over damage. Her movement speed increases to 45 and her flying speed to 90. See actions for her new actions in this form.

Multiattack. Onyx can make two attacks, either two melee or two ranged.

Scimitar +3: +13 to hit, reach 5 ft., 1 target. Hit: 10 (1d6 + 7) [slashing] damage. 

Chill Touch: +12 to hit, range 30 ft., 1 target. Hit: 12 (4d8) [necrotic] damage.

Bloodreaper Multiattack. Bloodreaper can make two attacks, ranged and/or melee.

Bloodreaper. Maw: +10 to hit, reach 10 ft., 1 target. Hit: 10 (2d6+4) [piercing] damage.

Bloodreaper. Void Razors: +10 to hit, range 30/60 ft., up to 3 targets. Hit: 10 (3d4+4) [slashing] damage.

Bloodreaper. Howling (Recharge 5-6). Bloodreaper beats her powerful wings to cause a small howling tornado to spring into existence. It effects a 25 ft. by 25 ft. cube of space, lasts this one round, and causes fear to creatures inside it. WIS DC 20 to save. On a failed save, the creatures are stunned and take 6d6 [psychic] damage, they take half as much and are not stunned on a success.

Terrifying Breath (Recharge 6). Bloodreaper exhales shadowy mist in a 90-foot cone. Each creature in that area must make a DC 20 Constitution saving throw. On a failed save, the creature takes 40 (9d8) cold damage and is frightened of Bloodreaper for 1 minute. On a successful save, the creature takes half as much damage and isn’t frightened.

While frightened of Bloodreaper, a creature is paralyzed. The frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

If a creature’s saving throw is successful or the effect ends for it, the creature is immune to Bloodreaper’s Terrifying Breath for the next 24 hours.

Animate Dead 1/day

Summon Shadowspawn 1/day

Summon Undead 1/day

Bonus action transform into Bloodreaper.

Bonus action spells: Shadow Blade, Blade of Disaster

Attack actions and prepared spells 3rd level and under.

The arch-shadow can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The arch-shadow regains spent legendary actions at the start of her turn.

Melee or Ranged action (Costs 1 Action).

Cast a Spell (Costs 1–3 Actions). The arch-shadow expends a spell slot to cast a 1st-, 2nd-, or 3rd-level spell that she has prepared. Doing so costs 1 legendary action per level of the spell.

Bloodreaper. Howling (Costs 3 Actions).