Kodama of the East Tree + Ghost Town + Felidar Retreat + Bad River

Kodama of the East Tree

Ghost Town

Felidar Retreat

Bad River

How it works

1. Fetch a land using Bad River.
2. When the fetched land enters, Felidar Retreat and Kodama trigger.
3. Resolve the Kodama trigger, putting Ghost Town from your hand onto the battlefield.
4. When Ghost Town enters, Kodama and Felidar Retreat trigger.
5. Holding priority, activate Ghost Town's first abiltiy by tapping it, adding C.
6. Activate Ghost Town's second ability by paying 0, returning it from the battlefield to your hand.
7. Resolve the Felidar Retreat from step 4, creating a token.
8. When the token enters, Kodama triggers, putting Ghost Town from your hand onto the battlefield.
9. When Ghost Town enters, Felidar Retreat triggers.
10. Repeat from step 5.