Oboro Breezecaller + Scaled Herbalist + Elven Raft-Steerer

Oboro Breezecaller

Scaled Herbalist

Elven Raft-Steerer

How it works

1. Activate Scaled Herbalist by tapping it, putting a land from your hand onto the battlefield.
2. When the land enters the battlefield, Elven Raft-Steerer triggers, untapping Scaled Herbalist.
3. Activate the land and another land by tapping them, adding at least 2.
4. Activate Oboro Breezecaller by paying 2 and returning a land from the battlefield to your hand, untapping another land.
5. Repeat.