Kodama of the East Tree + Rampaging Baloths + Arid Archway

Kodama of the East Tree

Rampaging Baloths

Arid Archway

How it works

1. Play Arid Archway.
2. When Arid Archway enters the battlefield, it, Rampaging Baloths, and Kodama of the East Tree trigger.
3. Resolve the Kodama of the East Tree trigger, choosing not to put anything from your hand onto the battlefield.
4. Resolve the Arid Archway trigger, returning it from the battlefield to your hand.
5. Resolve the Rampaging Baloths trigger, creating a token.
6. When the token enters the battlefield, Kodama triggers, putting Arid Archway from your hand onto the battlefield.
7. When Arid Archway enters the battlefield, it and Rampaging Baloths trigger.
8. Repeat from step 4.

This clever loop relies on the constant bouncing and re-entering of Arid Archway to continuously trigger Kodama of the East Tree and Rampaging Baloths. When Arid Archway enters the battlefield, its own triggered ability bounces itself right back to your hand, while Rampaging Baloths creates a 4/4 green Beast token from the landfall trigger. That token's entry then gives you a valid permanent for Kodama of the East Tree to cheat Arid Archway straight back out from your hand without needing to recast it. Because Arid Archway naturally picks itself up on every single iteration, the cycle is entirely self-sustaining, generating an infinite number of creature tokens, creature enters-the-battlefield effects, and landfall triggers.