Wow, that's what you call an aggressive approach...I like the idea of a Mardu Madness Vampire deck, I made one myself that works pretty well (Crimson Mardu Folia)and I think you should go check it out if you want some more ideas, since your deck can't really deal with counter strategies it seems, especially removals, for you rely too heavily(if not only;) on your creatures. For example I don't think you should put that much exemplary of Kalitas/Drana, since they both are legendary creatures you won't be able to play them if they are already on the battlefield, at the risk of them becoming
dead weight...well, you can still sacrifice them with the arisocrat or outright discard them too, but I think that's a bit of a slot-waste...^^'