Centaur Vinecrasher

Trample.
Centaur Vinecrasher enters the battlefield with a number of +1/+1 counters on it equal to the number of land cards in all graveyards.
Whenever a land card is put into a graveyard from anywhere, you may pay {g}{g} If you do, return Centaur Vinecrasher from your graveyard to your hand.