iMtG Server: Gathering

Curses! My curses are cursed! 60 cards, 0 sideboard 3 {Dragonskull Summit} 10 {Swamp} 10 {Mountain} 23 lands 2 {Chosen of Markov} 4 {Bloodline Keeper} 4 {Bloodcrazed Neonate} 2 {Blood Artist} 4 {Bitterheart Witch} 16 creatures 4 {Curse of Thirst} 4 {Exquisite Blood} 4 {Curse of Misfortunes} 2 {Blood Reckoning} 1 {Curse of the Pierced Heart} 4 {Curse of Bloodletting} 2 {Curse of Stalked Prey} 21 other spells Sideboard Notes: Just for fun, I built a RB curses deck. Challenge: beat someone in a game using this deck.

I would swap chosen for the vampire captains. Also swap neonate for {rakish heir} and two of the bloodline lords for nighthawks.
Also consider a sacrifice ability or two to make sure the witch dies when you need her to.