Symdreil the Sunforce

+3: Put a +1/+1 counter on target creature you control. You may activate this once per round as an instant.
-4: Destroy target creature if its controller has cards in their hand equal to or less than the number of +1/+1 counters on creatures you control.
-12: You gain 6 life, then distribute X +1/+1 counters amongst your creatures, where X is the number of life you gained this turn.