Herr Geralt Kyrhenna

+1: Until your next turn, whenever a creature dies you may add 1 loyalty counter to any number of planeswalkers you control.
-9: Each player sacrifices a creature. Each opponent loses life equal to the total toughness sacrificed. You gain life equal to the total power.
-18: Geralt becomes a Vampire with lifelink, indestrutible, and deathtouch. His power and toughness are equal to your life total.