Zimone, Quandrix Prodigy, Retreat to Coralhelm, Stone-Seeder Hierophant, and Oboro, Palace in the Clouds

Prerequisites

• Zimone, Quandrix Prodigy on the battlefield
• Retreat to Coralhelm on the battlefield
• Stone-Seeder Hierophant on the battlefield
• Oboro, Palace in the Clouds in hand

Steps

1. Activate Stone-Seeder Hierophant by tapping it, untapping any land you control
2. Activate that land by tapping it, adding at least
3. Activate Zimone's first ability by paying and tapping it, putting Oboro, Palace in the Clouds from your hand onto the battlefield
4. When Oboro, Palace in the Clouds enters the battlefield, Retreat to Coralhelm and Stone-Seeder Heirophant trigger
5. Resolve the Stone-Seeder Hierophant trigger, untapping it
6. Resolve the Retreat to Coralhelm trigger, untapping Zimone
7. Activate Oboro's first ability by tapping it, adding
8. Activate Oboro's last ability by paying , returning it from the battlefield to your hand
9. Repeat

Results

• Infinite landfall triggers