Hunting Season

When Hunting Season enters the battlefield, each player votes for either Duck or Wabbit. If the vote is tied, you decide.
At the beginning of each player's upkeep, if it's Duck Season, that player sacrifices a creature.
If it's Wabbit Season, that player puts a 1/1 green Rabbit creature token into play.
The seasons change at the end of each upkeep.
Any player may pay 3 life during his or her turn to change the season to the other.