Kira, Dark Aether Wielder

+2: Put an 0/2 Aether Shadow Token onto the battlefield. It has "Whenever this creature blocks or dies, each opponent loses 2 life."
-X: Put X -1/-1 counters on target creature. It gains; "Whenever this creature attacks or blocks, you may discard a card. Otherwise, you lose 2 life.
-9: Exile up to four target creatures. For each creature exiled this way, you may create 3/2 Forgotten token creature with unblockable.