Medium or Small Humanoid, Neutral Evil
Traits
Vampiric Connection. While the familiar and its vampire master are on the same plane of existence, the vampire can communicate with the familiar telepathically, and the vampire can perceive through the familiar's senses.
Actions
Multiattack. The familiar makes two Umbral Dagger attacks.
Umbral Dagger. Melee or Ranged Attack Roll: +5, reach 5 ft. or range 20/60 ft. Hit: 5 (1d4 + 3) Piercing damage plus 7 (3d4) Necrotic damage. If the target is reduced to 0 Hit Points by this attack, the target becomes Stable but has the Poisoned condition for 1 hour. While it has the Poisoned condition, the target has the Paralyzed condition.
Bonus Actions
Deathless Agility. The familiar takes the Dash or Disengage action.
Found on p.314 of MM2025 (Free Rules)