Hut in the Forest

If you have Hut in the Forest in your
opening hand, shuffle it into your library.
At the beginning of your upkeep you may
sacrifice a creature or discard a card. Search your library for a Tree card and put it onto the battlefield.
At the end of your turn you may sacrifce a
creature or discard a card. Draw two cards.
At the end of your turn, if you have no cards in
hand or no permanents on your side of the field, sacrifice Hut in the Forest.