Selesnya Sanctuary + Walking Atlas + Elven Raft-Steerer

Selesnya Sanctuary

Walking Atlas

Elven Raft-Steerer

How it works

1. Activate Walking Atlas by tapping it, putting Selesnya Sanctuary from your hand onto the battlefield.
2. When Selesnya Sanctuary enters the battlefield, it and Elven Raft-Steerer trigger.
3. Resolve the Selesnya Sanctuary trigger, returning itself from the battlefield to your hand.
4. Resolve the Elven Raft-Steerer trigger, untapping Walking Atlas.
5. Repeat.