How can you create a combo with Kodama of the East Tree, Irenicus's Vile Duplication, Boros Garrison?
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[START OF COMBO]This combo can be formed with Kodama of the East Tree, Irenicus's Vile Duplication, Boros Garrison

Color identity: RGWU
Mana cost: {3}{U}
Steps:
  1. Cast Irenicus's Vile Duplication by paying {3}{U}, creating a nonlegendary token copy of Kodama of the East Tree with haste.
  2. Play Boros Garrison.
  3. Both Kodama of the East Trees and Boros Garrison trigger.
  4. Resolve the token Kodama of the East Tree trigger, choosing not to put anything from your hand onto the battlefield.
  5. Resolve the Boros Garrison trigger, returning it to your hand from the battlefield.
  6. Resolve the nontoken Kodama of the East Tree trigger, putting Boros Garrison from your hand onto the battlefield.
  7. The token Kodama of the East Tree and Boros Garrison trigger.
  8. Resolve the Boros Garrison trigger, returning it to your hand from the battlefield.
  9. Resolve the token Kodama of the East Tree trigger, putting Boros Garrison from your hand onto the battlefield.
  10. The nontoken Kodama of the East Tree and Boros Garrison trigger.
  11. Repeat from step 5.[END OF COMBO STEPS]

Result:
  - Infinite landfall triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Kodama of the East Tree must be on the battlefield
  - Irenicus's Vile Duplication must be in your hand
  - Boros Garrison must be in your hand
[END OF COMBO PREREQUISITES]
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