Ruin Ghost, and Retreat to Coralhelm

Prerequisites

• Ruin Ghost on the battlefield
• Retreat to Coralhelm on the battlefield
• You control a basic Plains
• Ruin Ghost does not have summoning sickness

Steps

1. Activate any basic Plains you control by tapping it, adding
2. Activate Ruin Ghost by paying and tapping it, blinking the Plains
3. The Plains enters the battlefield, triggering Retreat to Coralhelm, untapping Ruin Ghost
4. Repeat

Results

• Infinite landfall triggers