Complex Infinite Mana and Life (Vintage)

Fastbond allows you to play any number of lands per turn, at the price of one life.

Zuran orb allows you to sacrifice your lands for two life. Once you tap a land, sacrifice it and gain two life.

When you sacrifice your lands, you gain two life, you can return play them again for one life. Then you tap it, sacrifice it play it, and on and on and on.