Legendary Resistance (3/Day). If Vladus fails a saving throw, he can choose to succeed instead.

Regeneration. Vladus regains 20 hit points at the start of his turn if he has at least 1 hit point and isn't in sunlight or running water. If Vladus takes radiant damage or damage from holy water, this trait doesn't function at the start of Vladus's next turn.

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

Multiattack. Vladus makes three attacks: one with his bite and two with his claws.

Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one willing creature, or a creature that is grappled by Vladus, incapacitated, or restrained. Hit: 15 (1d10 + 6) piercing damage plus 18 (4d8) necrotic damage. The target's hit point maximum is reduced by an amount equal to the necrotic damage taken, and Vladus 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: +11 to hit, reach 5 ft., one target. Hit: 16 (2d6 + 6) slashing damage.

Vampiric Drain. Melee Weapon Attack: +11 to hit, reach 5 ft., one creature. Hit: 19 (2d10 + 6) necrotic damage. Vladus regains hit points equal to the necrotic damage dealt.

Shadow Cloak. As a bonus action, Vladus can blend into the shadows, gaining advantage on Dexterity (Stealth) checks until the start of his next turn.

Shadow Parry. When Vladus is hit by a melee attack, he can use his reaction to impose disadvantage on the attack roll, causing the attack to miss if it hits.

Evasion: When Vladus is subjected to an effect that allows him to make a Dexterity saving throw to take only half damage, he instead takes no damage on a success and half damage on a failure.

Shadow Step Counter (Costs 1 Reaction): When a creature misses Vladus with a melee attack, he can use his reaction to teleport up to 30 feet to an unoccupied space he can see, evading the attack.

Vladus 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. Vladus regains spent legendary actions at the start of his turn.

1. Dark Whispers (Costs 2 Actions): Vladus targets a creature he can see within 60 feet. The targeted creature must succeed on a DC 18 Wisdom saving throw or be paralyzed with fear until the end of its next turn.

2. Sudden Vanish (Costs 2 Actions): Vladus magically turns invisible until the start of his next turn. During this time, he can move freely without provoking opportunity attacks.

3. Nocturnal Assault (Costs 3 Actions): Vladus chooses a point he can see within 60 feet. Shadows coalesce, and a swarm of bats or rats (Vladus's choice) emerges from that point, attacking all creatures in a 15-foot cone originating from that point. Each creature in that area must make a DC 18 Dexterity saving throw, taking 4d8 piercing damage on a failed save or half as much on a successful one.

Once per round, at the end of another creature's turn, Vladus can take a Mythical Action, choosing from the options below:

1. Darkened Aegis (Costs 2 Actions). Vladus summons a shadowy shield, gaining temporary hit points equal to his Charisma modifier. He can use this shield to absorb damage until the start of his next turn.
2. Necrotic Eruption (Costs 3 Actions). Vladus releases a burst of necrotic energy in a 20-foot radius. Creatures in the area must make a DC 18 Constitution saving throw, taking 4d8 necrotic damage on a failed save or half as much on a successful one.