Infinite creature ETBInfinite creature tokensInfinite landfall triggersInfinite tapped land tokens
How it works
Earthbend a land that can tap to produce at least , thus animating it.
Cast Springheart Nantuko for its bestow cost by paying 1, attaching it to the animated land.
Play any land.
When the land enters the battlefield, Springheart Nantuko triggers, causing you to pay 1 to create two token copies of the land it is attached to due to Exalted Sunborn.
When the land tokens enter the battlefield, Springheart Nantuko triggers twice.
Holding priority, activate the two land tokens by tapping them, adding at least .
Resolve the first Springheart Nantuko trigger, choosing not to pay and create two 1/1 Insect creature tokens due to Exalted Sunborn
Resolve the second trigger, causing you to pay 1 to create two token copies of the land it is attached to due to Exalted Sunborn.