Fall Harvester

When Fall Harvester enters the battlefield, exile target non-Human creature an opponent controls until Fall Harvester leaves the battlefield.
Whenever a Scarecrow or Pumpkin creature enters the battlefield, you may pay {1}{w}. If you do, put a +1/+1 counter on target Human or Spirit you control and you gain 2 life.
"I'd be careful out here in the night time."