Kodama of the East Tree + Petrified Field + Echoing Deeps + Tireless Tracker + Horizon Explorer

Kodama of the East Tree

Petrified Field

Echoing Deeps

Tireless Tracker

Horizon Explorer

How it works

1. Play Petrified Field.
2. When Petrified Field enters the battlefield, Kodama of the East Tree and Tireless Tracker 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 Tireless Tracker 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, Tireless Tracker 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 Tireless Tracker 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, Tireless Tracker triggers.
12. Repeat from step 4.

This clever loop hinges on a self-sustaining cycle of land recursion and entry triggers fueled by Kodama of the East Tree. As Petrified Field enters, Tireless Tracker generates a Clue token that triggers Kodama to sneak a land into play, while Horizon Explorer ensures your lands enter untapped and readily available. You sacrifice the land to its own ability mid-stream—grabbing the other land back from your graveyard—only for Echoing Deeps to enter as a fresh copy of that sacrificed land to keep the chain unbroken. Because every iteration repeats this sacrifice and return dance, Tireless Tracker's landfall and artifact creation abilities trigger infinitely.