Chulane triggers, causing you to draw a card and put Golgari Rot Farm from your hand onto the battlefield.
Golgari Rot Farm enters the battlefield, triggering itself and Nissa.
Resolve the Nissa trigger, adding .
Resolve the Golgari Rot Farm trigger, returning it from the battlefield to your hand.
Shrieking Drake enters the battlefield, returning itself from the battlefield to your hand.
Repeat.
This clever loop relies on Chulane, Teller of Tales turning every creature cast into a miniature engine by letting you drop a land straight from your hand. When you cast Shrieking Drake, Chulane's ability lets you put Golgari Rot Farm directly onto the battlefield, immediately triggering Nissa, Resurgent Animist for mana and setting up a perpetual motion machine. As Golgari Rot Farm bounces itself back to your hand via its own enters-the-battlefield trigger and Shrieking Drake returns itself to your hand, you endlessly recycle the same cheap creature and land to draw your entire deck and generate limitless resources.