Resolve the Golgari Rot Farm trigger, returning it from the battlefield to your hand.
Resolve the Springheart Nantuko trigger, causing you to pay 1 to create a token copy of Icetill Explorer.
Because of the additional Icetill Explorer token, you can play an additional land this turn.
Repeat.
This intricate loop transforms a simple bounce-land into an engine of endless copy-making by leaning on the interaction between landfall triggers and untap effects. When Golgari Rot Farm enters the battlefield, it triggers Stone-Seeder Hierophant to untap itself and Springheart Nantuko to prompt a copy—which you can afford using the mana generated by tapping the Rot Farm before it returns to your hand. Meanwhile, Icetill Explorer ensures you always have the land drop you need to keep replaying Golgari Rot Farm turn after turn, all while its own static ability grants you the extra land plays required to sustain the loop.