Boey la de Boey

+1: Create a 2/2 green Booey creature token with lifelink and reach.
-1: Search your library for a basic land card. Put it on the battlefield tapped. Then if you control seven or more lands, you gain 5 life.
-7: Lands you control become 0/0 elementals with trample and haste. Put six +1/+1 counters on lands you control. They are still lands.