Simic Growth Chamber, PuPu UFO, and Elven Raft-Steerer

Prerequisites

• Simic Growth Chamber in hand
• PuPu UFO on the battlefield
• Elven Raft-Steerer on the battlefield

Steps

1. Activate PuPu UFO by tapping it, putting Simic Growth Chamber from your hand onto the battlefield
2. When Simic Growth Chamber enters the battlefield, it and Elven Raft-Steerer trigger
3. Resolve the Simic Growth Chamber trigger, returning itself from the battlefield to your hand
4. Resolve the Elven Raft-Steerer trigger, untapping PuPu UFO
5. Repeat

Results

• Infinite landfall triggers