If you're sticking to the Vampire Aristocrats theme then the first cards I'd pick up would be Vampiric Tutor (finds Skullclamp and has Vampire in it!), Bloodletter of Aclazotz which doubles your drain / damage output on your turn absolutely wild, Bloodline Keeper provides sac fodder and a strong anthem, Legion's Landing nice thematic ramp, and Sorin, Imperious Bloodlord thematic ramp and removal
This works against it a little in the early game but not a lot as getting board presence, a chance or ramp or at worst another card to use are all good things
See where Im headed
Its not 100% your choice, so theres that
Includes further support for the Blackwing, Koaki Meiru, Morphtronic, Infernity, Ice Barrier, Synchron, Archfiend, Frog, Batteryman, Worm, and Ally of Justice archetypes and introduces the new Watt archetype
It's a great reanimation effect because it has maximum versatility