Activate two lands by tapping them, adding at least {2}.
Groundchuck & Dirtbag triggers twice, adding {G}{G}.
Activate Magus of the Candelabra by paying {3} and tapping it, untapping the two lands and Magus of the Candelabra.
Repeat.

Infinite green mana

Infinite mana lands you control can produce

Ashaya, Soul of the Wild

Magus of the Candelabra

Groundchuck & Dirtbag

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, Tiller Engine and Springheart Nantuko trigger.
Resolve the Tiller Engine 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.

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

Tiller Engine

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

Declare Overlord of the Hauntwoods as an attacker.
Overlord of the Hauntwoods triggers, creating an untapped Everywhere land token due to Spelunking.
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 card draw

Infinite draw triggers

Spelunking

Activate Staff of Domination by tapping it, adding {G} as it's a Forest land due to Toph and Yavimaya.
Groundchuck & Dirtbag triggers, adding {G}.
Activate Staff of Domination's first ability by paying {1}, untapping it.
Repeat.

Combos with "Groundchuck & Dirtbag"