Oldaker's Consolation

If one or more +1/+1 counters would be put on a creature an opponent controls, put that many -1/-1 counters on it instead.

At the beginning of your end step, if you gained 5
or more life and lost 5 or more life this turn,
transform Oldaker's Consolation.

Oldaker's mind-polluting mists have a special way of making rebellions end themselves.