Emeria Shepherd + World Shaper + Spawning Pit + Coastal Hornclaw

Emeria Shepherd

World Shaper

Spawning Pit

Coastal Hornclaw

How it works

1. Activate Coastal Hornclaw by sacrificing a land.
2. Repeat step 1 until you control no lands.
3. Activate Spawning Pit by sacrificing World Shaper.
4. When World Shaper dies, it triggers, return all lands from your graveyard to the battlefield tapped.
5. When the lands enter, Emeria Shepherd triggers that many times.
6. Resolve an Emeria Shepherd trigger that was triggered by a Plains, returning World Shaper from your graveyard to the battlefield.
7. Resolve all remaining Emeria Shepherd triggers.
8. Resolve the Spawning Pit ability.
9. Repeat

This recursive engine relies on dumping your lands into the graveyard so that Emeria Shepherd can pull off massive battlefield returns. By leveraging Coastal Hornclaw to strip your own lands away, you set the stage for World Shaper to hit the graveyard via Spawning Pit and trigger a massive wave of land recursion. When those lands re-enter the battlefield, Emeria Shepherd's landfall ability converts them into resurrected permanents—including bringing World Shaper right back—while Spawning Pit simultaneously accumulates an endless supply of charge counters.