Vengeant Archfiend

Flying, retribution 2 (Whenever a creature you control that was dealt combat damage this turn dies, put two +1/+1 counters on this creature.)
At the beginning of your end step, each opponent loses life equal to the number of +1/+1 counters on Vengeant Archfiend.
"Every one of my minions that falls to your blade fuels my power and quenches your life."