Any upgrades to this Markov EDH deck?

{"ops":[{"insert":"https://archidekt.com/decks/1026656#Markov_Tribal\n\nHere is my Edgar Markov vampire tribal deck. I know that I will get "},{"insert":{"card-link":"Exquisite Blood"}},{"insert":" when I can afford it. Is there anything I can upgrade that I missed? \n\n"}]}