You're reincarnated as a Vampire, but the Reincarnation Goddess allows you to pick a Vampire type that you know from a work of fiction. However, you must retain the weakness to Sunlight (Or any source of UV Light), regardless of how powerful your vampire body is.
Among some types of Vampires you can become there's Jojo's Bizzare Adventure, Hellsing Ultimate and even Adventure Time.
Now, what type of Vampire will you pick? What would be your powers? How would you use them?
For example, I would be a Jojo's Bizzare Adventure Vampire , gaining superhuman strength, enhanced senses, regeneration, blood-sucking tentacles from the fingers and near-immortality (Probably being immune to disease as well). When draining the blood of a victim, either human or beast, that unfortunate soul becomes a Zombie, which doesn't have any vampiric ability, obey their master's orders and can be killed via decapitation, brain destruction and sunlight (Or any source of UV Light). Besides that, some vampires can develop special abilities by manipulating their bodies in creative and unique ways, for example reduce their body temperature to freeze enemies with a touch, creates pressurized fluid jets from the eyes that can cut stone, fuse organism together into strange chimeras, hypnotize weak-minded individuals, turn humans into vampires by giving them their vampiric blood, control their detached body parts and even create flesh buds and insert them into the brains of living beings to control them. It appears that Vampires with an immense amount of willpower can enter a deep hibernation-like state, which can be prolonged for long periods of time, even 100 years.
Not only, they can still die if their head is damaged sufficiently, but all vampires are disintegrated by sunlight (Or any source of UV Light) and while not confirmed, it is possible for a vampire to die if not receiving enough blood, eventually withering away and dying. However, they are unaffected by other vampire-related weaknesses like garlic, silver, holy elements, moving waters or needing an invitation. Also, if they are weakened enough, vampires cannot regenerate until they have consumed enough blood to restore their bodies, either by reattaching their own body parts or absorbing others (Like DIO fusing with Jonathan's body). Vampires probably cannot breed with humans and create Dhampirs (Being undead creatures, vampires probably cannot have kids with other vampires, only convert the living), since DIO concived Giorno using Jonathan's body who was a human, only inheriting the characteristic "WRYYY" battle cry.