Skyshroud Ranger, Boros Garrison, and Elven Raft-Steerer

Prerequisites

• Skyshroud Ranger on the battlefield
• Boros Garrison in hand
• Elven Raft-Steerer on the battlefield

Steps

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

Results

• Infinite landfall triggers