Scaretiller + Retreat to Coralhelm + Obscura Storefront

Prerequisites

• Scaretiller is untapped.
• You have a basic Island, Plains, or Swamp in library.

Steps

1. 1Play Obscura Storefront.
2. 2Obscura Storefront enters the battlefield, triggering itself and Retreat to Coralhelm.
3. 3Resolve the Obscura Storefront trigger, causing you to sacrifice it, then search your library for a basic Plains, Swamp or Island card, put it onto the battlefield tapped, and gain 1 life.
4. 4The basic land enters the battlefield, triggering Retreat to Coralhelm, tapping Scaretiller.
5. 5Scaretiller triggers, returning Obscura Storefront from your graveyard to the battlefield tapped.
6. 6Obscura Storefront enters the battlefield, triggering itself and Retreat to Coralhelm.
7. 7Resolve the Retreat to Coralhelm trigger, untapping Scaretiller.
8. 8Repeat from step 3.

Effects

• Near-infinite landfall triggers
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Put all basic Swamps, Islands, and Plains from your library onto the battlefield tapped