Blood-Soaked Dreadknight

Whenever a creature under your opponent's control dies, put a +1/+1 counter on Blood-Soaked Dreadknight.
When Blood-Soaked Dreadknight is put into the graveyard from play, you gain 1 life for each +1/+1 counter on Blood-Soaked Dreadknight.
Ominous, cold, bloodthirsty, and nearly thirty feet tall. Dreadknights are terrifying reinforcements.