Kodama of the East Tree + Petrified Field + Echoing Deeps + Chocobo Racetrack + Horizon Explorer

Kodama of the East Tree

Petrified Field

Echoing Deeps

Chocobo Racetrack

Horizon Explorer

How it works

1. Play Petrified Field.
2. When Petrified Field enters the battlefield, Kodama of the East Tree and Chocobo Racetrack trigger.
3. Resolve the Kodama of the East Tree trigger, putting nothing onto the battlefield.
4. Holding priority, activate Petrified Field's second ability by tapping and sacrificing it, returning Echoing Deeps from your graveyard to your hand.
5. Resolve the Chocobo Racetrack trigger, creating a token.
6. When the token enters the battlefield, Kodama of the East Tree triggers, putting Echoing Deeps from your hand onto the battlefield untapped as a copy of Petrified Field.
7. When Echoing Deeps enters the battlefield, Chocobo Racetrack triggers.
8. Holding priority, activate Echoing Deeps using Petrified Field's second ability by tapping and sacrificing it, returning Petrified Field from your graveyard to your hand.
9. Resolve the Chocobo Racetrack trigger, creating a token.
10. When the token enters the battlefield, Kodama of the East Tree triggers, putting Petrified Field from your hand onto the battlefield.
11. When Petrified Field enters the battlefield, Chocobo Racetrack triggers.
12. Repeat from step 4.

This ingenious loop uses Kodama of the East Tree as a staging ground, chaining land entries directly into token generation via Chocobo Racetrack. As those tokens enter the battlefield, Kodama's triggered ability lets you effortlessly cycle your lands back into play. Meanwhile, Horizon Explorer ensures your lands enter completely untapped, and Petrified Field and Echoing Deeps trade places between the battlefield and your graveyard to endlessly repeat the cycle.