Rebirth of the Vale

When Rebirth enters the battlefield, put X 1/1 green saproling creature tokens onto the battlefield where X is the number of Forests you control.
{g}, Sacrifice a creature: Return a land you control from the graveyard to your hand. If it is
a Forest, put it onto the battlefield.
If Rebirth is destroyed by a card effect and sent
to the graveyard, return Rebirth to your hand.