You might think about adding
vampire nighthawk in the deck and taking out the basicilla screecher. Another thing I noticed about your deck is that you don't have much in the way of defense so you might think about adding ghostly prisons or some
wall of reverence. Another good wall life gain card is
nyx fleece ram. I also noticed that you have a few enchantments so you might think about adding ethereal armors as well. I am not much for the thrull parasites. Overall I do like this deck and look forward to seeing what you make of it.