How can you create a combo with Kodama of the East Tree, Spelunking, Petrified Field, Echoing Deeps, Springheart Nantuko?
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[START OF COMBO]This combo can be formed with Kodama of the East Tree, Spelunking, Petrified Field, Echoing Deeps, Springheart Nantuko

Color identity: G
Mana cost: 
Steps:
  1. Play Petrified Field.
  2. When Petrified Field enters the battlefield, Kodama of the East Tree and Springheart Nantuko 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 Springheart Nantuko trigger, choosing not to pay and creating a 1/1 Insect 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, Springheart Nantuko 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 Springheart Nantuko trigger, choosing not to pay and creating a 1/1 Insect 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, Springheart Nantuko triggers.
  12. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite landfall triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Kodama of the East Tree must be on the battlefield
  - Spelunking must be on the battlefield
  - Petrified Field must be in your hand
  - Echoing Deeps must be in the graveyard
  - Springheart Nantuko must be on the battlefield
  - You are able to play a land this turn.
[END OF COMBO PREREQUISITES]
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