Retreat to Emeria + Haru, Hidden Talent + Thaumatog

Retreat to Emeria

Haru, Hidden Talent

Thaumatog

How it works

1. Play a land.
2. When the land enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token.
3. When the Kor Ally enters, Haru triggers, earthbending the land that entered.
4. Activate Thaumatog by sacrificing the earthbended land.
5. Haru triggers, returning the land from your graveyard to the battlefield tapped.
6. When the land enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token.
7. When the Kor Ally enters, Haru triggers, earthbending the land that entered.
8. Resolve the Thaumatog ability from step 4.
9. Repeat from step 4.

This loop sets up a self-sustaining cycle of land animation and sacrifice using the landfall engine of Retreat to Emeria. Whenever you play a land, Retreat to Emeria spawns a 1/1 Kor Ally token, which in turn triggers Haru, Hidden Talent to earthbend that land into an animate creature. You can then feed this animated land to Thaumatog as a sacrifice, which instantly triggers Haru, Hidden Talent a second time to return the land directly to the battlefield tapped. That new entry restarts the whole process by triggering Retreat to Emeria all over again, letting you loop the sequence indefinitely while pumping Thaumatog to staggering proportions.