You can drain blood and life energy from a willing creature, or one that is grappled by you, incapacitated, or restrained. Make a melee attack against the target. If you hit, you deal 1 piercing damage and 1d6 necrotic damage. The target’s hit point maximum is reduced by an amount equal to the necrotic damage taken, and you regain hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

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. 

Your Charisma score increases by 2, and your Intelligence score increases by 1.

You can speak, read, and write Common and Vampire.

Vampires don’t mature and age in the same way that other races do.

Once per long rest the day walker can transform into a bat for up to 10 minutes. All stuff you own or have is transported to a special storage dimension until you transform back.