Bane of Bounties

Ward {4}
When Bane of Bounties enters the battlefield
exile each nonland permanent you don't control
with a bounty counter on it. Put a +1/+1 counter
on Bane of Bounties for each creature exiled this
way.
When Bane of Bounties leaves the battlefield each opponent creates a number of Treasure tokens
equal to the number of counters on it.