Declare Overlord of the Hauntwoods as an attacker.
Overlord of the Hauntwoods triggers, creating an untapped Everywhere land token due to The Wandering Minstrel.
When the Everywhere token enters the battlefield, Springheart Nantuko triggers.
Holding priority, activate Everywhere by tapping it, adding {G}.
Groundchuck & Dirtbag triggers, adding {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a token copy of Overlord of the Hauntwoods.
When the Overlord of the Hauntwoods token enters the battlefield, it triggers, creating a tapped Everywhere land token.
Repeat from step 3.

Infinite ETB

Infinite creature tokens

Infinite landfall triggers

Infinite tapped Forest tokens

Infinite tapped Island tokens

Infinite tapped Mountain tokens

Infinite tapped Plains tokens

Infinite tapped Swamp tokens

Infinite tapped copies of a specific land

Springheart Nantuko

Overlord of the Hauntwoods

Groundchuck & Dirtbag

The Wandering Minstrel

Declare Overlord of the Hauntwoods as an attacker.
Overlord of the Hauntwoods triggers, creating a tapped Everywhere land token.
When the Everywhere token enters the battlefield, Amulet of Vigor and Springheart Nantuko trigger.
Resolve the Amulet of Vigor trigger, untapping Everywhere.
Holding priority, activate Everywhere by tapping it, adding {G}.
Groundchuck & Dirtbag triggers, adding {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a token copy of Overlord of the Hauntwoods.
When the Overlord of the Hauntwoods token enters the battlefield, it triggers, creating a tapped Everywhere land token.
Repeat from step 3.

Amulet of Vigor

Play a land. When the land enters, Springheart Nantuko triggers, causing you to pay {1}{G} to create a token copy of Dryad Arbor.
When the Dryad Arbor token enters, Springheart Nantuko triggers. Holding priority, activate the Dryad Arbor token by tapping it, adding {G}.
Groundchuck & Dirtbag triggers, adding {G}.
Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a token copy of Dryad Arbor.
Repeat from step 2.

Infinite tapped creature tokens

Dryad Arbor

Concordant Crossroads

Combos with "Groundchuck & Dirtbag"