Requires

Steps

1. At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of Kodama of the East Tree that isn't legendary.
2. Play Rakdos Carnarium.
3. Kodama of the East Tree, the Kodama of the East Tree token, and Rakdos Carnarium trigger.
4. Resolve the Kodama of the East Tree token's trigger, choosing not to put anything from your hand onto the battlefield.
5. Resolve the Rakdos Carnarium trigger, returning it to your hand.
6. Resolve the Kodama of the East Tree trigger, putting Rakdos Carnarium onto the battlefield.
7. The Kodama of the East Tree token and Rakdos Carnarium trigger.
8. Resolve the Rakdos Carnarium trigger, returning it to your hand.
9. Resolve the Kodama of the East Tree token's trigger, putting Rakdos Carnarium onto the battlefield.
10. Kodama of the East Tree and Rakdos Carnarium trigger.
11. Repeat from step 5.
12. At the beginning of your combat phase, Helm of the Host triggers, creating a nonlegendary token copy of Kodama of the East Tree with haste.
13. Play Rakdos Carnarium.
14. Both Kodama of the East Trees and Rakdos Carnarium trigger.
15. Resolve the token Kodama of the East Tree trigger, choosing not to put anything from your hand onto the battlefield.
16. Resolve the Rakdos Carnarium trigger, returning it to your hand from the battlefield.
17. Resolve the nontoken Kodama of the East Tree trigger, putting Rakdos Carnarium from your hand onto the battlefield.
18. The token Kodama of the East Tree and Rakdos Carnarium trigger.
19. Resolve the Rakdos Carnarium trigger, returning it to your hand from the battlefield.
20. Resolve the token Kodama of the East Tree trigger, putting Rakdos Carnarium from your hand onto the battlefield.
21. The nontoken Kodama of the East Tree and Rakdos Carnarium trigger.
22. Repeat from step 5.

Results