Konrad, Blood Purger

Flying, Double Strike
When a vampire you control enters the battlefield, put a blood counter on any vampire you control if there is a creature your opponent controls has flying. Repeat this process for first strike, double strike, deathtouch, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance. Then put a +1/+1 counter on Konrad for each counter put on a creature this way.