Kartov Sir'vance

Lifelink, Flying, haste, deathtouch
At the beginning of your upkeep sacrifice Kartov Sir'vance unless you pay 3 life
Whenever Kartov Sir'vance deals damage,
put a +1/+1 counter on Kartov
At the end of your upkeep create 1/1 black vampire creature tokens with lifelink equal to Kartov Sir'vances power