Povintel, Adversary of Kosho

If a Kosho card is on the battlefield under your control then put a -1/-1 counter on Povintel, Adversary of Kosho.
If a Kosho card is on the battlefield under an opponents control then put a +1/+1 counter on Povintel, Adversary of Kosho
and put a -1/-1 counter on all Kosho cards that opponents control.
Whenever you proliferate then proliferate again.