When Golgari Rot Farm enters the battlefield, it, The Necrobloom, 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 Golgari Rot Farm trigger, returning it from the battlefield to your hand.
Resolve the The Necrobloom trigger, creating a token.
When the token enters the battlefield, Kodama triggers, putting Golgari Rot Farm from your hand onto the battlefield.
When Golgari Rot Farm enters the battlefield, it and The Necrobloom trigger.
Repeat from step 4.
This clever loop hinges on the elegant synergy between Kodama of the East Tree and The Necrobloom, turning a simple land drop into a self-sustaining engine. When you play Golgari Rot Farm, its bounce trigger immediately returns it to your hand, but before it leaves, The Necrobloom and Kodama of the East Tree catch the entry and trigger in tandem. As the resulting token enters the battlefield, Kodama's ability intercepts the event and seamlessly drops the Golgari Rot Farm right back onto the battlefield from your hand to repeat the cycle infinitely.