Retreat to Coralhelm, Walking Atlas, and Ghost Town

Prerequisites

• Retreat to Coralhelm on the battlefield
• Walking Atlas on the battlefield
• Ghost Town in hand
• Walking Atlas does not have summoning sickness
• It is not your turn

Steps

1. Activate Walking Atlas by tapping it, putting Ghost Town from your hand onto the battlefield
2. Retreat to Coralhelm triggers, untapping Walking Atlas
3. Activate Ghost Town by tapping it, adding
4. Activate Ghost town by paying , returning it to your hand
5. Repeat

Results

• Infinite colorless mana
• Infinite landfall triggers