Retreat to Coralhelm + Cloudstone Curio + Walking Atlas

Prerequisites

• You have a nonartifact land card in hand.
• You control a nonartifact land.

Steps

1. 1Activate Walking Atlas by tapping it, putting a nonartifact land from your hand onto the battlefield.
2. 2When the land enters the battlefield, Retreat to Coralhelm and Cloudstone Curio trigger.
3. 3Resolve the Retreat to Coralhelm trigger, untapping Walking Atlas.
4. 4Resolve the Cloudstone Curio trigger, returning any other nonartifact land from the battlefield to your hand.
5. 5If the land entered untapped and can produce mana, you may activate it by tapping it, adding at least .
6. 6Repeat.

Effects

• Infinite landfall triggers
• Infinite mana lands you control that enter the battlefield untapped can produce