Emeria Shepherd + World Shaper + Woe Strider + Trenching Steed

Emeria Shepherd

World Shaper

Woe Strider

Trenching Steed

How it works

1. Activate Trenching Steed by sacrificing a land.
2. Repeat step 1 until you control no lands.
3. Activate Woe Strider 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 Woe Strider ability.
9. Repeat

This clever loop relies on Trenching Steed to systematically bin your own lands by repeatedly sacrificing them into the graveyard. Once your lands are gone, Woe Strider steps in to sacrifice World Shaper, whose death trigger immediately dumps all of those accumulated lands right back onto the battlefield tapped. That mass influx of land-falls triggers Emeria Shepherd over and over, allowing you to bypass your hand and deploy World Shaper straight back to the battlefield while also recycling every other nonland permanent you could ever want.