Meh, there's better ways to work this combo.
Make it light-dark, and you can bless your vampires and use guardian angels to save your Liquid Shadows.
Make it life-dark, and adrenaline your minor vampires (with nightfall, they have three attack, which is the best amount to have with adrenaline). Fast and mastery. Plus, it's better unupgraded, and you don't have to spend as much money making it work.
Make it death-dark, and combine LS with other poison to dominate.
Make it dark-aether, so you can use delays while your vampires dominate. You can also quintessence your weaklings.
Take out the Liquid Shadows entirely, add a nymph. Or if you can't get one, add nymphs tears. You have way to many pillars in anyway.
Speaking of pillar problems, add in devourers, it's a way better way to make dark mana than overdoing the pillars.
Vampire decks need speed, otherwise they'll fail. If you don't win fast enough, your dragons will die, your squishy weakling vampires will get killed, and you won't get mastery anyway. There are methods to get the exact same effect without spending so much quantums. Take the rage-potion guardian angel combo, and add vampire. You've got a card with vampire that gains five attack per turn. It's brutal. (remember, the guardian angel liquid shadow combo doesn't mean you liquid shadow the guardian angel.)
As far as a mono deck goes, there aren't enough cards like steal or drain life to make it versatile enough to win.
