Vampire

Size: Medium or Small   Creature Type: Your creature type is undead   Speed: 30ft, climb equal to your walk speed   Sunlight Sensitivity: You have disadvantage on attack rolls and on Wisdom (Perception) checks that rely on sight when you, the target of your attack, or whatever you are trying to perceive is in direct sunlight.   Hidden in the Shadows: You gain proficiency in the Stealth skill. You can cast the Invisibility spell once per long rest without using a spell slot or material components. Constitution is your spellcasting ability for this spell.   Shapeshift: Starting at 3rd level, you can use your action to transform into a Tiny bat for up to 10 minutes. Starting at 5th level, you can choose to transform into a Medium size mist form instead. You revert to your true form early if you are knocked unconscious, take radiant damage or die.   Bat Form:

• Your flying speed is 30 feet.
• You can’t speak or cast spells.
• Your ability scores & hit points remain unchanged, and your equipment merges with your form.

  Mist Form:

• Your flying speed is 20 feet, and you can hover.
• You can pass through spaces as small as 1 inch wide but cannot pass through water.
• You can’t take actions, speak, or manipulate objects.
• You have advantage on Strength, Dexterity, and Constitution saving throws.
• You are resistant to nonmagical damage.

  Vampiric Bite: Your fanged bite is a simple weapon, that can harvest ones blood. It deals 1d8 piercing damage on a hit, and you can use Constitution for the attack and damage rolls.   When you attack with this bite and hit a creature that isn't a Construct or an Undead, you can empower yourself and gain temporary hit points equal to the piercing damage.   You can empower yourself with this bite a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.