Sorin's Gambit

Whenever you cast a Vampire spell, create a 1/1 black Bat creature token with flying.
{2}{b}, Sacrifice all Bats you control: Destroy up to three target creatures.
{2}{w}, Sacrifice all Bats you control: Put a +1/+1 counter on each Vampire you control.
"Innistrad will be avenged. I will see to that."