世界樹/The World Tree

Land -
The World Tree enters the battlefield tapped. <CR>
{T}: Add {G}. <CR>
As long as you control six or more lands, lands you control have "{T}: Add one mana of any color." <CR>
{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.

Land -
The World Tree enters the battlefield tapped. <CR>
{T}: Add {G}. <CR>
As long as you control six or more lands, lands you control have "{T}: Add one mana of any color." <CR>
{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.