Kodama of the East Tree, Petrified Field, Echoing Deeps, Toggo, Goblin Weaponsmith, and Spelunking

Prerequisites

• Kodama of the East Tree on the battlefield
• Petrified Field in hand
• Echoing Deeps in the graveyard
• Toggo, Goblin Weaponsmith on the battlefield
• Spelunking 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 Toggo 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 Toggo 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, Toggo 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 Toggo 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, Toggo triggers
12. Repeat from step 4

Results

• Infinite landfall triggers
• Infinite Rock tokens