When Azorius Chancery enters the battlefield, it, Sarinth Greatwurm, 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 Azorius Chancery trigger, returning it from the battlefield to your hand.
Resolve the Sarinth Greatwurm trigger, creating a token.
When the token enters the battlefield, Kodama triggers, putting Azorius Chancery from your hand onto the battlefield.
When Azorius Chancery enters the battlefield, it and Sarinth Greatwurm trigger.
Repeat from step 4.
This clever loop turns the self-bouncing nature of Azorius Chancery into a perpetual motion machine, fueled entirely by the cascading triggers of Kodama of the East Tree. As you replay the bounceland, Sarinth Greatwurm watches lands enter the battlefield to flood your board with tapped Powerstone tokens. Each time one of those Powerstones materializes, Kodama of the East Tree's triggered ability catches the entry and pulls Azorius Chancery right back out of your hand to restart the cycle.