At the beginning of your end step, Toph triggers, animating a land you control that enters the battlefield untapped.
During your next turn, cast Springheart Nantuko for its bestow cost by paying {1}{G}, attaching it to an animated land.
Play a land. When the land enters, Springheart Nantuko triggers, causing you to pay {1}{G} to create a copy of the land it is attached to.
When the land token enters, Springheart Nantuko and Lotus Cobra trigger.
Holding priority, activate the land token by tapping it, adding at least {1}.
Resolve the Lotus Cobra trigger, adding {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a copy of the land it is attached to.
Repeat from step 4.

Infinite landfall triggers

Infinite tapped land tokens

Toph, the First Metalbender

Springheart Nantuko

Lotus Cobra

At the beginning of your end step, Toph triggers, animating a land you control that enters the battlefield untapped.
During your next turn, cast Springheart Nantuko for its bestow cost by paying {1}{G}, attaching it to an animated land.
Play a land. When the land enters, Springheart Nantuko triggers, causing you to pay {1}{G} to create a copy of the land it is attached to.
When the land token enters, Springheart Nantuko and Tireless Provisioner trigger.
Holding priority, activate the land token by tapping it, adding at least {1}.
Resolve the Tireless Provisioner trigger, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a copy of the land it is attached to.
Repeat from step 4.

Tireless Provisioner

At the beginning of your end step, Toph triggers, animating a land you control that enters the battlefield untapped.
During your next turn, cast Springheart Nantuko for its bestow cost by paying {1}{G}, attaching it to an animated land.
Play a land. When the land enters, Springheart Nantuko triggers, causing you to pay {1}{G} to create a copy of the land it is attached to.
When the land token enters, Springheart Nantuko and Nissa trigger.
Holding priority, activate the land token by tapping it, adding at least {1}.
Resolve the Nissa trigger, adding {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a copy of the land it is attached to.
Repeat from step 4.

Nissa, Resurgent Animist

At the beginning of your end step, Toph triggers, animating a land you control that enters the battlefield untapped.
During your next turn, cast Springheart Nantuko for its bestow cost by paying {1}{G}, attaching it to an animated land.
Play a land. When the land enters, Springheart Nantuko triggers, causing you to pay {1}{G} to create a copy of the land it is attached to.
When the land token enters, Springheart Nantuko and Stone-Seeder Hierophant trigger.
Resolve the Stone-Seeder Hierophant trigger, untapping it.
Holding priority, activate the land token by tapping it, adding at least {1}.
Activate Stone-Seeder Hierophant by tapping it, untapping a land.
Activate a land by tapping it, adding at least {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a copy of the land it is attached to.
Repeat from step 4.

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