Olivia's main power is that she can turn other creatures into vampires and that she can take control of those vampires. Why not use her second effect as the sole meaning behind the deck. Why not call it; "Royal
Persuasion"? You could use cards that steal creatures then play
bloodflow connoisseur to remove those creatures once they've swung at your opponent. I've always believed that a good commander deck epitomizes the powers of the legendary creature. For this deck i'll ask for you to try and make the base of the deck primarily cards from the innistrad block since vampires clearly had the strongest influence in that set. Use the black and red creatures/sorcery/instants/enchantment cards that STEAL creatures and health and SACRIFICE their creatures to
deal damage, force them to discard and control the board state. Innistrad will be your greatest strength as far as deck builds go. The vampire families and black/red destruction spells are what will make this deck cohesive and
dangerous. What are your thoughts on this?