Spheres of Reproduction

{t}: Add {c} to your mana pool.
{3}, {t}, Pay X life where X is the number of
lands you control named Spheres of Reproduction: Create a land token that's a copy
of Spheres of Reproduction.
{7}, Sacrifice seven Wastes: Search your library
for a colorless permanent card and put it onto
the battlefield, then shuffle your library.