Kodama of the East Tree + Spelunking + Petrified Field + Echoing Deeps + Greensleeves, Maro-Sorcerer

Kodama of the East Tree
Spelunking
Petrified Field
Echoing Deeps
Greensleeves, Maro-Sorcerer

Requires
Kodama of the East Tree must be on the battlefield. Spelunking must be on the battlefield. Petrified Field must be in hand. Echoing Deeps must be in the graveyard. Greensleeves, Maro-Sorcerer must be on the battlefield. You are able to play a land this turn.
Steps
  1. Play Petrified Field.
  2. When Petrified Field enters the battlefield, Kodama of the East Tree and Greensleeves, Maro-Sorcerer 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 Greensleeves, Maro-Sorcerer trigger, creating a 3/3 Badger creature token.
  6. When the creature token enters the battlefield, Kodama of the East Tree triggers, putting Echoing Deeps from your hand onto the battlefield untapped due to Spelunking as a copy of Petrified Field.
  7. When Echoing Deeps enters the battlefield, Greensleeves, Maro-Sorcerer 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 Greensleeves, Maro-Sorcerer trigger, creating a 3/3 Badger creature token.
  10. When the creature 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, Greensleeves, Maro-Sorcerer triggers.
  12. Repeat from step 4.
Results
Infinite creature tokens. Infinite ETB. Infinite landfall triggers.

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