Right to First Blood

Split Second
Destroy target creature. It can't be regenerated. Each opponent loses life equal to either its power or toughness (Whichever is greater, your choice if tied.), and you gain life equal to the total amount of life lost this way.
The vampires of Innistrad are on the brink of insanity, given that humans are now near-extinct on Innistrad. Many turn on one another, just for one bite.