The Erdtree

The Erdtree enters the battlefield tapped.

{t}: Add Green.

As long as you control six or more lands, lands you control have "{t}: Add one mana of any color."

{w}{w}{u}{u}{b}{b}{r}{r}{g}{g}, {t}, Sacrifice The
Erdtree: Search your library for any number of
Demigod cards, put them onto the battlefield, then shuffle.