Drusilla Markov

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two +1/+1 counters on it.)
When Drusilla Markov enters the battlefield, if you cast it, create X 1/1 Vampire creature tokens, where X is Drusilla's power.
{r}{b}, {t}: Vampires you control gain +1/+1 and first strike until the end of turn.