Retreat to Emeria, Haru, Hidden Talent, and Zuran Orb

Prerequisites

• Retreat to Emeria on the battlefield
• Haru, Hidden Talent on the battlefield
• Zuran Orb on the battlefield

Steps

1. Play a land
2. When the land enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token
3. When the Kor Ally enters, Haru triggers, earthbending the land that entered
4. Activate Zuran Orb by sacrificing the earthbended land
5. Haru triggers, returning the land from your graveyard to the battlefield tapped
6. When the land enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token
7. When the Kor Ally enters, Haru triggers, earthbending the land that entered
8. Resolve the Zuran Orb ability from step 4
9. Repeat from step 4

Results

• Infinite ETB
• Infinite lifegain triggers
• Infinite lifegain
• Infinite creature tokens
• Infinite landfall triggers