Atraxa, Praetor's Voice

Phyrexian Weapons. Atraxa's weapon attacks are magical. When Atraxa hits with any weapon, the weapon deals an extra 5d8 psychic damage (included in the attack).

Praetors' Advisor.  Atraxa knows if she hears a lie.

Cenobite's Blessing. Atraxa's allies within 30 feet of Atraxa gain the benefit of the Haste spell. As long as 1 or more allies are within 30 feet of Atraxa, Atraxa regain 10 hit points at the start of her turn.

Voice's Blessing. Enemies within 10 feet of Atraxa have disadvantage on their attacks if they have lower initiative than Atraxa. Atraxa has advantage on her attacks as long as she has a higher initiative order than her target. 

Augur's Blessing. Atraxa and her allies within 30 feet of her have advantage on wisdom saving throws. Enemies within 30 feet of Atraxa have disadvantage on their wisdom saving throws. 

Whisper's Blessing. As long as Atraxa, Praetor's Voice has dealt damage this turn, moving out of an opponent's range doesn't trigger opportunity attacks. When an enemy dies within 30 feet of Atraxa, their soul permanently dissipates and cannot be resurrected. 

Innate Spellcasting. Atraxa's spellcasting ability is Charisma (spell save DC 20). Atraxa can innately cast the following spells, requiring no material components:

At will: detect evil and good, invisibility (self only)

3/day each: blade barrier, dominate person, flame strike, telekinesis

1/day each: antilife shell, dominate monster, cloudkill

Magic Resistance. Atraxa has advantage on saving throws against spells and other magical effects.

Multiattack. Atraxa makes two melee attacks.

Half-life Spear. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 21 (4d6 + 7) slashing damage plus 22 (5d8) psychic damage.

Compleating Touch (4/Day). Atraxa touches another creature. An ally magically regains 30 (6d8 + 3) hit points and is freed from any curse, disease, poison, blindness, or deafness. An enemy suffers 34 (6d8 + 3) necrotic damage and has their health total lowered by the damage taken. An enemy that has their health reduced to zero this way becomes resurrected as a Phyrexian. 

Culling the Weak. When another creature dies within 30 feet of Atraxa, Atraxa regains hit points equal to the creature's challenge rating or level. 

Atraxa can take 2 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. Atraxa regains spent legendary actions at the start of her turn.

Bow to Us (Costs 2 Actions). Atraxa casts Dominate Person or Dominate Monster. She can only cast these if she still has them available. 

Flight. Atraxa moves up to her movement speed. 

Join Us or Die. Atraxa uses her Compleating Touch action or her Half-Life Spear attack.