Kodama of the East Tree either from your hand or from the command zone by paying ({4} magic symbol) ({G} magic symbol) ({G} magic symbol) plus commander tax, if applicable.
Holding priority, cast
Double Major by paying ({G} magic symbol) ({U} magic symbol) , copying the
Kodama of the East Tree spell, with the copy not being legendary.
Resolve both
Kodama of the East Tree spells.
Play
Simic Growth Chamber.
Both
Kodama of the East Trees and
Simic Growth Chamber trigger.
Resolve the token
Kodama of the East Tree trigger, choosing not to put anything from your hand onto the battlefield.
Resolve the
Simic Growth Chamber trigger, returning it to your hand from the battlefield.
Resolve the nontoken
Kodama of the East Tree trigger, putting
Simic Growth Chamber from your hand onto the battlefield.
The token
Kodama of the East Tree and
Simic Growth Chamber trigger.
Resolve the
Simic Growth Chamber trigger, returning it to your hand from the battlefield.
Resolve the token
Kodama of the East Tree trigger, putting
Simic Growth Chamber from your hand onto the battlefield.