Yandreck, The Foulblooded

Flying, menace
Ruthless 3 - {b}{r} ({b}{r}, {t}, Sacrifice a creature: Put three +1/+1 counters on this creature.)
At the beginning of your endstep, if less than three +1/+1 counters were put on Yandreck this turn, you lose life equal to its power.
"You will pay me with blood planeswalker, one way or another."