Kodama of the East Tree + Scute Swarm + Dimir Aqueduct

Kodama of the East Tree
Scute Swarm
Dimir Aqueduct

Requires
Dimir Aqueduct in hand. All other permanents on the battlefield.
Steps
  1. Play Dimir Aqueduct
  2. Kodama of the East Tree, Dimir Aqueduct, and each Scute Swarm trigger
  3. Resolve the Kodama of the East Tree trigger, not putting anything from your hand onto the battlefield
  4. Resolve the Dimir Aqueduct trigger, returning it to your hand
  5. Resolve each Scute Swarm trigger, creating a token copy of Scute Swarm if you control six or more lands, or a 1/1 green Insect creature token otherwise
  6. Kodama of the East Tree triggers for each token that entered the battlefield
  7. Resolve all but one of the Kodama of the East Tree triggers, not putting anything from your hand onto the battlefield
  8. Resolve the last Kodama of the East Tree trigger, putting Dimir Aqueduct onto the battlefield from your hand
  9. Scute Swarm and Dimir Aqueduct trigger
  10. Repeat from step 4
Results
Infinite landfall triggers. Infinite creature tokens.