Bruxa

Innate Spellcasting: The Bruxa's innate spellcastng ability is Charisma (Spell save DC 18). The Bruxa can innately cast the following spells without any needing any material components.

At will: Detect thoughts, enthrall, misty step, suggestion

3/day each: greater invisibility (self only).

Legendary Resistance (3/Day): If the Bruxa fails a saving throw it can choose to succeed on it.

Regeneration: The Bruxa regains 20 hit points at the start of its turn if it has at least 1 hit point and isn't in sunlight or running water. If, the Bruxa takes radiant damage or damage from holy water, this trait doesn't function at the start of the vampire's next turn. The Bruxa dies only if it starts its turn with 0 hit points and doesn't regenerate. 

Shapechanger: The Bruxa can use its action to polymorph back into a woman or into its vampire form but it must not be in sunlight in order to do so.

Spider Climb: The Bruxa can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Vampire Weaknesses: The Bruxa has the following flaws:

Sunlight Sensitivity: The Bruxa takes 20 radiant damage when it starts its turn in sunlight and it has disadvantage on ability checks and attack rolls while in sunlight.

Multiattack. The Bruxa can make two attacks: two claw attacks or one claw attack and a bite attack.

Bite (Vampire Form only). Melee weapon attack: +9 to hit, 5 ft., one willing target or on a target grappled by the vampire, incapacitated or restrained target. The Bruxa can then bite for a 15 (3d6+5) piercing damage and another 16 (3d10) necrotic. The target’s HP maximum is reduced by the damage done equal to necrotic damage taken  and the vampire regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

Claw.Melee weapon attack: +9, reach 5 ft., one target. Hit: 12 (2d6+5) slashing. If the Bruxa succeeds on the attack instead of dealing damage it can instead grapple the target.

Cry of the Bruxa (5-6). The Bruxa can cry aloud in a 30 ft cone to multiple targets (does not affect anything at Huge size or up, nor constructs). Targets must make a DC 15 DEX save or take 45 (10d8) force damage on a failed save and get knocked prone or take half and not be knocked prone on a success.

Parry. The Bruxa adds 4 to its AC against one melee attack that would hit it using its long claws to parry the attack. The Bruxa must see the attacker and be using its claws. 

The Bruxa 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 vampire regains spent legendary actions at the start of its turn.

Move. The vampire moves up to its speed without provoking opportunity attacks.

Claw. The vampire makes one claw attack.

Bite (Costs 2 Actions). The vampire makes one bite attack.

Invisibility (3/day). The Bruxa can cast Greater Invisibility  on only itself.