Nicol Bolas, Vengeful

+1: Each opponent loses 1 life and you gain life equal to the amount of life lost. Remove all spark counters from all non-planeswalker permanents.
-3: Destroy target creature. for each spark counter on the destroyed creature add a loyalty counter to Nicol Bolas, Vengeful
-X: Destroy all non-land/non-planeswalker permanents with mana value X or less. Gain a life for each permanent you control destroyed this way.