Kodama of the East Tree + Petrified Field + Echoing Deeps + Curse of the Restless Dead + Horizon Explorer

Kodama of the East Tree

Petrified Field

Echoing Deeps

Curse of the Restless Dead

Horizon Explorer

How it works

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

This ingenious loop relies on a perpetual exchange between Petrified Field and Echoing Deeps in the graveyard, continuously resurrected and replayed to fuel an endless cycle. Whenever a land enters the battlefield, Curse of the Restless Dead produces a token, which in turn triggers Kodama of the East Tree's ability to cheat the next land straight from your hand. Meanwhile, Horizon Explorer ensures that your lands enter the battlefield smoothly and without delay, keeping the engine completely untapped and operational.