Dhampir's aren't a thing in D&D really, but Vryloka are, and they are very cool, IMHO the coolest race in all of 4e, because they were mechanically intetresting and had vampiric fluff that made them very different from Dhampirs, while playing in the same thematic sphere.
First off they were usual red heads, they could turn other humans that dead around them into Vrylokas, and they had unique twists on vampire lore, they background lore was great. I would love to see the race updated for 5e. Basically Vryloka were more living vampires like you have some MtG settings, but with a bunch of unique twists.
Oh, I had a Vryloka in 4E! Loved her so much. Had the best story for her, with assassins and treachery and a last living heir to protect and avenge. So much fun.
It'd be interesting to interact with Astarion as a Vryloka. I wonder if he could still feed on you.
