Kaya, Soul Assassin

+2: Target creature gets -2/-2. If it was white, gain 2 life. If it was black, its controller loses 2 life.
-3: Exile target permanent. Create a treasure token with, "Sacrifice It: Gain X any color mana (X is equal to the CMC of the exiled permanent)"
-9: Exile all permanents. You gain X life and each opponent loses X life where X is equal to the number of all permanents in exile.