Mobeus, Vastwood Archdruid

Primal {g}{g}{g} (You may cast this spell for its primal cost. You may only spend mana produced by basic lands to do so.)
When Mobeus, Vastwood Archdruid enters the battlefield, choose two -
* Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.
* You may play an additional land this turn.
* Draw a card.