Retreat to Emeria + Haru, Hidden Talent + Darigaaz's Caldera

Retreat to Emeria

Haru, Hidden Talent

Darigaaz's Caldera

How it works

1. Play Darigaaz's Caldera.
2. When Darigaaz's Caldera enters, it and Retreat to Emeria trigger.
3. Resolve the Retreat to Emeria trigger, creating a 1/1 Kor Ally creature token.
4. When the Kor Ally enters, Haru triggers, earthbending Darigaaz's Caldera.
5. Resolve the Darigaaz's Caldera trigger from step 2, causing you to sacrifice it
6. Haru triggers, returning Darigaaz's Caldera from your graveyard to the battlefield.
7. Repeat from step 2.

This elegant loop relies on Darigaaz's Caldera and its Lair drawback to perpetually reset your land drops. When you play the Caldera, its own entry trigger and Retreat to Emeria's landfall ability both fire off, with Retreat to Emeria instantly rewarding you by spawning a 1/1 Kor Ally token. The moment that Ally arrives, Haru, Hidden Talent triggers to earthbend the Caldera into a land-creature, setting it up for immediate doom when the Caldera's original sacrifice trigger finally resolves. Fortunately, Haru steps in once more to rescue the Caldera from the graveyard by returning it straight to the battlefield, restarting the cycle and burying your opponents in an endless wave of triggers and tokens.