Rootpath Purifier + Wheel of Sun and Moon + Evolving Wilds + Amulet of Vigor

Rootpath Purifier

Wheel of Sun and Moon

Evolving Wilds

Amulet of Vigor

How it works

1. Activate Evolving Wilds by tapping and sacrificing it.
2. Evolving Wilds is put on the bottom of your library instead of in your graveyard due to Wheel of Sun and Moon.
3. Resolve the Evolving Wilds ability, searching your library for Evolving Wilds and putting it onto the battlefield tapped.
4. Evolving Wilds enters the battlefield, triggering Amulet of Vigor, untapping Evolving Wilds.
5. Repeat.