The key here is to open with Moltres ex
Weakness: Grass (x2) Resistance: None Retreat: 3 124
Loading your deck with the best instants MTG has to offer makes opponents play scared, even when your hand is empty
However, there are things running around in the meta that can still get around this like Bonecrusher Giant and Questing Beast
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There aren't really many defined Vampire "combos" and what they can do is largely determined by your exact opening hand, but I'll attempt to provide a sample combo for reference: A Vampire-capable hand would be something like opening Uni-Zombie, either Vampire Familiar or Retainer and at least 1 other Vampire card to discard