Blood Alchemist of Vampiric Attributes

Dark Devotion: Has advantage on saving throws against being charmed or frightened.

Toxic blood: Heals from poison damage.

Scent of blood:  Creatures below half-health cannot benefit from hiding or invisibility, due to there loss of blood.

Consumed - Potion of Vampiric Attributes:  This creature's age has been permanently reduced, though they still continue to age at their usual rate. They have also gained the following abilities/effects which will last until the next time their health drops bellow 1/3 of its total HP:

• Shape Changer: Change into a medium cloud of mist. While in this form you have a flying speed of 20ft and are immune to all physical damage, but can not take any other actions (or bonus actions) except to change back.
• Spider Climb: You can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
• Vampire Strength: Your base STR stat is 18 and can not be reduced by any attacks, spells, or potions.
• Sun Sensitivity: You are vulnerable to Radiant damage.

Shape Changer: Change into a medium cloud of mist. While in this form you have a flying speed of 20ft and are immune to all physical damage, but can not take any other actions (or bonus actions) except to change back.

Multiattack: The alchemist can make two weapon attacks, only one of which can be to throw a concoction.

Dagger: Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage. If the target is a creature, it must succeed on a DC 12 Constitution saving throw or take an additional 2 (1d4) poison damage.

Toxic Spear. Melee/Ranged Weapon Attack: +3 to hit, reach 5-30 ft., one creature. Hit: 4 (1d10+3) piercing damage.  If the target fails a DC16 constitution saving throw, they are poisoned.

Throw Concoction. Ranged Weapon Attack: +4 to hit, range 5/20 ft., or 30/120 ft. if thrown with a sling, one target. The alchemist chooses one of the following concoctions to throw, provided he has any left:

• Potent Acid: Hit: 10 (3d6) acid damage.
• Potent Alchemist's Fire: Hit: 5 (2d4) fire damage at the start of each of the target's turns. A creature can end this damage by using its action to make a DC 16 Dexterity check to extinguish the flames.

Chug: They can drink one of the potions they are carrying:

• 3 x Potion of Healing
• 1 x Potion of Invisibility