Seiki, the Grim Truth

+2: Put a -1/-1 counter on target creature. If the target was destroyed by this ability you gain life equal to that card's converted mana cost.
-3: Target creature gains infect and has, "Pay 2 life, regenerate this card."
-9: Double the number of -1/-1 counters on each creature target player controls. You then gain life equal to the number of -1/-1 counters in play.