Edgar Markov, Sovereign

Eminence-Whenever a creature an opponent controls dies for the first time each turn, if Edgar Markov is in the command zone or on the battlefield, you may pay {1}{b}. If you do, its controller loses life equal to its toughness and you gain life equal to its power.
At the beginning of your end step, put a +1/+1 counter on each tapped Vampire you control for each opponent who was dealt damage by one or more Vampires you control.