Culling Aura. Constitution Saving Throw: DC 20, each Bloodied creature in a 30-foot Emanation originating from the scion at the end of the scion's turn. Failure: The target can't regain Hit Points until the start of the scion's next turn.

Legendary Resistance (3/Day). If the scion fails a saving throw, it can choose to succeed instead.

Magic Resistance. The scion has Advantage on saving throws against spells and other magical effects.

Spellcasting. The scion casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 20):

At will: Detect Thoughts, Dispel Magic

1/day each: Circle of Death, Create Undead

2/day each: Dimension Door, Invisibility, Scrying

Command. The scion casts Command (level 2 version), using the same spellcasting ability as Spellcasting. The scion can't take this action again until the start of its next turn.

Multiattack. The scion makes two attacks, using Death Touch or Mindwrack Bolt in any combination.

Death Touch. Melee Attack Roll: +12, reach 5 ft. Hit:25 (4d8 + 7) Necrotic damage.

Mindwrack Bolt. Ranged Attack Roll: +12, range 120 ft. Hit:21 (6d6) Psychic damage and the target has the Poisoned condition until the start of the scion's next turn.

Attack. The scion makes a Death Touch or Mindwrack Bolt attack.