Kodama of the East Tree | Dimir Aqueduct | Retreat to Emeria

Cards

Play
Dimir Aqueduct.
When
Dimir Aqueduct enters the battlefield, it,
Retreat to Emeria, and
Kodama of the East Tree trigger.
Resolve the
Kodama of the East Tree trigger, choosing not to put anything from your hand onto the battlefield.
Resolve the
Dimir Aqueduct trigger, returning it from the battlefield to your hand.
Resolve the
Retreat to Emeria trigger, creating a token.
When the token enters the battlefield,
Kodama triggers, putting
Dimir Aqueduct from your hand onto the battlefield.
When
Dimir Aqueduct enters the battlefield, it and
Retreat to Emeria trigger.
Repeat from step 4.