Kodama of the East Tree + Ghost Town + Felidar Retreat + Arid Mesa

Prerequisites

• It is not your turn.
• There is a land card in your library that can be fetched using Arid Mesa.
• Your life total is at least 2.

Steps

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

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature tokens
• Infinite landfall triggers