Meet Lady Nightfall :3
 
A vampire pony, she lives in her mansion up in a hill. Came from a very rich and powerful vampire/batpony family, she now owns her families manor.
 
She is a member of the high class ponies, and she often invites them all over to her mansion for parties.  
Despite her appernce, she’s actually a pretty nice pony. She donates a lot of her money to charities, and is very humble and polite to her guests.
 
She has a taste for very fine wine and foreign foods, often paying lots to try some. Also has a hobby of filling her house with various old items and artefacts she gets at auction houses.
 
She does drink blood (often mixing it with her wine), but she makes sure that the blood comes from a willing source. She also gains fangs and bat wings when the moon is out.