Thanks to your heritage, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

You have resistance to necrotic damage.

(2/Day). By spending an action, Dracula's blood runs through you, you breathe inward, sucking away the life force of creatures within 10 ft cone in front of you, up to 3. Creatures in the area of effect must succeed on a DC 13 Constitution save or take (3d6) necrotic damage; half of this damage is granted to you as temporary hit points. A successful saving throw reduces the necrotic damage by half. Creatures reduced to 0 hit points from this trait die and rise the next evening as a vampire spawn under Dracula’s control.

Feast of Blood. When you drain blood with your Life Drinker ability, you experience a surge of vitality. Your speed increases by half of your movement in feet, and you gain advantage on Strength, Dexterity, Constitution checks and saving throws for 1 minute.

Control Undeath. With Dracula's Blood you are granted the ability to control undeath like Dracula himself. You can use an action to impose his will on an undead creature you can see. The creature succeeds on a DC 10 + Cha. Charisma saving throw or falls under Dracula’s control. (You use the dominate monster spell for this ability and it last for 1 min. but does not require concentration).

Shape changer. If you aren't in direct sunlight or running water, you can use your action to polymorph into a bat. Statistics, other than your size and speed, are unchanged. Anything you are wearing transforms with you, but nothing you are carrying does. You revert to your true form if you die.

Spider Climb. Dracula can climb difficult surfaces, and so can you. You can climb walls including upside down on ceilings, without needing to make an ability check.

Unholy Weakness. Dracula has flaws, and now you share them:

Forbiddance. You can't enter a residence without an invitation from one of the occupants.

Harmed by Running Water. You take 10 acid damage if you end your turn in running water.

Stake to the Heart. If a piercing weapon made of wood is driven into your heart while you are incapacitated in your resting place, you are paralyzed until the stake is removed. Killed if with Silver. If you do not have a resting place you turn to ash when you die.

Sunlight Hypersensitivity. You takes 1d10 radiant damage when you start your turn in sunlight. While in sunlight, you has disadvantage on attack rolls and ability checks.
(unless you have some form of resistance or a day walker ring)