Retreat to Coralhelm, Simic Growth Chamber, and Sakura-Tribe Scout

Prerequisites

• Retreat to Coralhelm on the battlefield
• Simic Growth Chamber in hand
• Sakura-Tribe Scout on the battlefield

Steps

1. Activate Sakura-Tribe Scout by tapping it, putting Simic Growth Chamber from your hand onto the battlefield
2. When Simic Growth Chamber enters the battlefield, it and Retreat to Coralhelm trigger
3. Resolve the Simic Growth Chamber trigger, returning itself from the battlefield to your hand
4. Resolve the Retreat to Coralhelm trigger, untapping Sakura-Tribe Scout
5. Repeat

Results

• Infinite landfall triggers