Kodama of the East Tree + Petrified Field + Echoing Deeps + Emeria Angel + Horizon Explorer

Kodama of the East Tree

Petrified Field

Echoing Deeps

Emeria Angel

Horizon Explorer

How it works

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

This ingenious loop transforms a simple land drop into an endless cascade of triggers, anchored by the static buff of Horizon Explorer ensuring your lands always enter ready to work. As Petrified Field and Echoing Deeps trade places in and out of the graveyard, Emeria Angel steadily fills the skies with a flock of flying tokens. Every time a token arrives, Kodama of the East Tree's triggered ability steps in to effortlessly slide the returned land right back onto the battlefield, sustaining the entire engine indefinitely.