Patron of the Moon + Storm Cauldron + Tiller Engine

Patron of the Moon

Storm Cauldron

Tiller Engine

How it works

1. Activate two lands by tapping them, adding at least 2.
2. Storm Cauldron triggers twice, returning both lands from the battlefield to your hand.
3. Activate Patron of the Moon by paying 1, putting both lands from your hand onto the battlefield tapped.
4. When the lands enter, Tiller Engine triggers, untapping the lands.
5. Repeat.