The World Tree

The World Tree enters the battlefield tapped.
{t}: Add {g}
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 World Tree: Search your library for any number of God cards, put them onto the battlefield, then shuffle your library.
.