Vampire Husk

Legendary Resistance (2/Day). If the vampire fails a saving throw, it can choose to succeed instead.

Regeneration. The vampire regains 10 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 vampire takes radiant damage or damage from holy water, this trait doesn't function at the start of the vampire's next turn.

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

Pact Tactics. advantage on an attack roll against a creature if at least one of your allies is within 5 feet of the creature and the ally isn’t incapacitated

Vampire Weaknesses. The vampire has the following flaws:

Forbiddance. The vampire can't enter a residence without an invitation from one of the occupants.

Harmed by Running Water. The vampire takes 20 acid damage if it ends its turn in running water.

Stake to the Heart. If a piercing weapon made of wood is driven into the vampire's heart while the vampire is incapacitated in its resting place, the vampire is paralyzed until the stake is removed.

Sunlight Hypersensitivity. The vampire husk will take 10 radiant damage every turn its in sunlight.

Multiattack. The vampire makes two attacks, only one of which can be a bite attack.

Unarmed Strike. Melee Weapon Attack: +9 to hit, reach 5 ft., one creature. Hit: 8 (1d8 + 4) bludgeoning damage. Instead of dealing damage, the vampire can grapple the target (escape DC 18).

Bite. (Vampire Form ). Melee Weapon Attack: +9 to hit, reach 5 ft., one willing creature, or a creature that is grappled by the vampire, incapacitated, or restrained. Hit: 7 (1d8 + 4) piercing damage plus 10 (3d) necrotic damage. The target's hit point maximum is reduced by an amount equal to the 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. A humanoid slain in this way and then buried in the ground rises the following night roll percentile dice (1-30) they turn into another husk (31-60) they become a vampire spawn and then must find a full vampire to become one in (7) days or become a husk themselves (61-100) they become a full blooded vampire and has control over the husks to an extent (dm discretion on percentage)

Call of the fallen.

Call of the fallen.(den/lair) If the husk is alone and finds an enemy it will let out a screech to call the closes other Husks for help or surprise said enemy.

The vampire can take 1 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 next evening. 

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

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

Grapple.