Armor Class 14 (natural armor)
Hit Points 42 (5d8 + 20)
Speed 30 ft.
Damage Immunities cold, necrotic, poison
Condition Immunities charmed, exhaustion, poisoned
Senses darkvision 120 ft., passive Perception 10
Languages the languages it knew in life
Challenge 2
Explode. When the vampirate is reduced to 0 hit points, it explodes in a cloud of ash. Any creature within 5 feet of it must succeed on a DC 14 Constitution saving throw or take 5 (1d10) necrotic damage.
Spider Climb. The vampirate can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Unusual Nature. The vampirate doesn't require air or drink.
Energy Drain. Melee or Ranged Spell Attack: +4 to hit, reach 5 ft. or range 30 ft., one creature. Hit: 11 (2d10) necrotic damage. A Humanoid reduced to 0 hit points by this attack dies and instantly transforms into a free-willed shadow under the DM's control.
Light Crossbow. Ranged Weapon Attack: +4 to hit, range 80/320 ft., one target. Hit: 11 (2d8 + 2) piercing damage.
BAM, p. 62