Vampire Assassin of New Capenna

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

Maestro's Assassin Proficiency.  as long as its wielding Maestro Knife the Vampire Assassin gains an additional 2d4 necrotic damage to its attack

Vampire Weaknesses. The vampire has the following flaws:

Stake to the Heart. The vampire is destroyed if a piercing weapon made of wood is driven into its heart while it is incapacitated in its resting place.

Sunlight Hypersensitivity. The vampire takes 20 radiant damage when it starts its turn in sunlight. While in sunlight, it has disadvantage on attack rolls and ability checks.

Multiattack. The Vampire Assassin makes two attacks

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 8 (2d4 + 3) slashing damage. Instead of dealing damage, the vampire can grapple the target (escape DC 13).

Maestro Knife. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 8 (2d4 + 3) slashing damage and 6 (2d4) necrotic damage. On a successful attack the creature must make a DEX DC12 check or be covered in a thick oily paint-like substance that halves their movement and prevents them from performing any bonus actions until the end of their next turn.

Quickdraw. The Vampire Assassin may draw or stow its weapon as a reaction