Cast Irenicus's Vile Duplication by paying ({3} magic symbol) ({U} magic symbol) , creating a token copy of Kodama of the East Tree that isn't legendary.
Play Selesnya Sanctuary.
Kodama of the East Tree, the Kodama of the East Tree token, and Selesnya Sanctuary trigger.
Resolve the Kodama of the East Tree token's trigger, choosing not to put anything from your hand onto the battlefield.
Resolve the Selesnya Sanctuary trigger, returning it to your hand.
Resolve the Kodama of the East Tree trigger, putting Selesnya Sanctuary onto the battlefield.
The Kodama of the East Tree token and Selesnya Sanctuary trigger.
Resolve the Selesnya Sanctuary trigger, returning it to your hand.
Resolve the Kodama of the East Tree token's trigger, putting Selesnya Sanctuary onto the battlefield.
Kodama of the East Tree and Selesnya Sanctuary trigger.
Repeat from step 5.
Cast Irenicus's Vile Duplication by paying ({3} magic symbol) ({U} magic symbol) , creating a nonlegendary token copy of Kodama of the East Tree with haste.
Play Selesnya Sanctuary.
Both Kodama of the East Trees and Selesnya Sanctuary trigger.
Resolve the token Kodama of the East Tree trigger, choosing not to put anything from your hand onto the battlefield.
Resolve the Selesnya Sanctuary trigger, returning it to your hand from the battlefield.
Resolve the nontoken Kodama of the East Tree trigger, putting Selesnya Sanctuary from your hand onto the battlefield.
The token Kodama of the East Tree and Selesnya Sanctuary trigger.
Resolve the Selesnya Sanctuary trigger, returning it to your hand from the battlefield.
Resolve the token Kodama of the East Tree trigger, putting Selesnya Sanctuary from your hand onto the battlefield.
The nontoken Kodama of the East Tree and Selesnya Sanctuary trigger.