Play Glacial Chasm either from your hand or from your graveyard.
When Glacial Chasm enters the battlefield, its second ability triggers, causing you to sacrifice another land you control.
Play any land from your graveyard.
At the beginning of your next upkeep, Glacial Chasm's cumulative upkeep ability triggers, allowing you to choose not to pay the cost and sacrifice it instead.
Repeat.

Prevent all damage that would be dealt to you

Glacial Chasm

Wayward Swordtooth

Perennial Behemoth

Play a land card from your hand.
Kodama, Trench Behemoth and each Scute Swarm trigger.
If the land played was a basic land, you may activate it by tapping it, adding at least {1}.
Resolve the Kodama trigger, choosing to put nothing onto the battlefield from your hand.
Resolve the Trench Behemoth trigger, targeting any creature an opponent controls.
Resolve a Scute Swarm trigger, creating either a 1/1 Insect creature token or a token copy of Scute Swarm.
The creature token enters the battlefield, triggering Kodama.
Holding priority, activate Trench Behemoth by returning a land from the battlefield to your hand, untapping Trench Behemoth.
Resolve the Kodama trigger, putting a land onto the battlefield from your hand.
Trench Behemoth and each Scute Swarm trigger.
Repeat from step 5.

Infinite creature tokens

Infinite ETB

Infinite landfall triggers

Infinite mana basic lands you control can produce

Kodama of the East Tree

Trench Behemoth

Scute Swarm

Activate Trench Behemoth by returning a land from the battlefield to your hand, untapping Trench Behemoth.
Activate Llanowar Scout by tapping it, putting the land from your hand onto the battlefield.
When the land enters the battlefield, Retreat to Coralhelm triggers, untapping Llanowar Scout.
If the land enters untapped and can produce mana, you may activate it by tapping it, adding at least {1}.
Repeat.

Infinite mana lands you control that enter the battlefield untapped can produce

Retreat to Coralhelm

Llanowar Scout

Activate a land by tapping it, adding at least {U}.
Activate Tideforce Elemental by paying {U} and tapping it, untapping Llanowar Scout.
Activate Trench Behemoth by returning the land from the battlefield to your hand, untapping it.
Activate Llanowar Scout by tapping it, putting the land from your hand to the battlefield.
When the land enters the battlefield, Tideforce Elemental triggers, untapping it.
Repeat.

Tideforce Elemental

Activate Experiment Kraj using Llanowar Scout's ability by tapping it, putting a land from your hand onto the battlefield.
If the land is mana-producing and enters the battlefield untapped, you may activate it by tapping it, adding at least {1}.
Activate Experiment Kraj using Trench Behemoth's ability by returning the land from the battlefield to your hand, untapping Experiment Kraj.
Repeat.

Experiment Kraj

Activate Patchwork Crawler using Llanowar Scout's ability by tapping it, putting a land from your hand onto the battlefield.
If the land is mana-producing and enters the battlefield untapped, you may activate it by tapping it, adding at least {1}.
Activate Patchwork Crawler using Trench Behemoth's ability by returning the land from the battlefield to your hand, untapping Patchwork Crawler.
Repeat.

Patchwork Crawler

During an opponent's turn, activate Llanowar Behemoth by tapping a blue creature you control except Unctus.
The creature triggers, causing you to loot.
The Watcher's first ability triggers, creating a 1/1 Tentacle creature token.
Resolve the Llanowar Behemoth ability.
Repeat.

Infinite self-discard triggers

Near-infinite ETB

Infinite draw triggers

Infinite looting

Near-infinite tapped creature tokens

Near-infinitely large Llanowar Behemoth until end of turn

Unctus, Grand Metatect

The Watcher in the Water

Llanowar Behemoth

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}.
Regal Behemoth 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

Infinite tapped Forest tokens

Springheart Nantuko

Dryad Arbor

Kratos, God of War

Regal Behemoth

Cast Time Warp by paying its mana cost, causing you to take an extra turn after this one.
Activate Dust Bowl by paying {3}, tapping it and sacrificing Mystic Sanctuary, destroying a nonbasic land.
Play Mystic Sanctuary from your graveyard.
When Mystic Sanctuary enters untapped, it triggers, putting Time Warp from your graveyard onto the top of your library.
Move to your next turn, drawing Time Warp during your draw step.
Repeat.

Skip your draw step

Near-infinite extra turns

Mystic Sanctuary

Dust Bowl

Time Warp

Cast Time Warp from your graveyard by paying its mana cost.
Holding priority, activate Talon Gates of Madara by paying {4}, putting it from your hand onto the battlefield.
When Talon Gates of Madara enters the battlefield, it triggers, phasing out Hades.
Resolve Time Warp, causing you to take an extra turn after this one.
Activate Trench Behemoth by returning Talon Gates of Madara from the battlefield to your hand.
During your extra turn, Hades phases in during your untap step.
Repeat.

Infinite turns

Emet-Selch, Unsundered // Hades, Sorcerer of Eld

Talon Gates of Madara

Activate Rex using Llanowar Scout's ability by tapping it, putting a land from your hand onto the battlefield.
If the land is mana-producing and enters the battlefield untapped, you may activate it by tapping it, adding at least {1}.
Activate Rex using Trench Behemoth's ability by returning the land from the battlefield to your hand, untapping Rex.
Repeat.

Rex, Cyber-Hound

Activate Necrotic Ooze using Llanowar Scout's ability by tapping it, putting a land from your hand onto the battlefield.
If the land is mana-producing and enters the battlefield untapped, you may activate it by tapping it, adding at least {1}.
Activate Necrotic Ooze using Trench Behemoth's ability by returning the land from the battlefield to your hand, untapping Necrotic Ooze.
Repeat.

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