Tsisaar, Shade of Rot

Rank IV - Master
When a Being or Creature card is destroyed by
-1/-1 counters on your opponent's field, deal 4
damage to their Vitality.
Blight {p/b}{p/b}{p/b}{p/b} (Target your opponent and place a
Blight Mark on their field. At the beginning of their
turn, they must place -1/-1 counters on each Being and Creature card on their field. Remove the Blight Mark
if this card is destroyed.)