Deal combat damage to an opponent using any creature.
Nature's Will triggers, tapping all lands the defending opponent controls and untapping all lands you control.
Move to your postcombat main phase.
Activate all mana-producing lands you control by tapping them, adding at least {3}{R}{R}.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat.

Infinite combat damage

Infinite combat phases

Infinite mana creatures you control can produce

Infinite untap of creatures you control

Infinite mana lands you control can produce

Aggravated Assault

Nature's Will

Attack with your creature.
On combat damage, Nature's Will triggers, tapping all lands the player you damaged controls and untapping your lands.
Activate Najeela for {W}{U}{B}{R}{G}, untapping your attacking creatures, giving them trample, lifelink, and haste, and adding an additional combat phase after this one.
Repeat.

Infinite creature tokens

Najeela, the Blade-Blossom

Declare Hellkite Charger as an attacker, triggering its ability.
Holding priority, activate all mana-producing lands you control by tapping them, adding at least {5}{R}{R}.
Resolve the Hellkite Charger trigger, causing you to pay {5}{R}{R} to untap all attacking creatures you control and to get an additional combat phase after this one.
Deal combat damage to an opponent using Hellkite Charger.
Nature's Will triggers, tapping all lands the defending opponent controls and untapping all lands you control.
Repeat each combat phase.

Hellkite Charger

Deal combat damage to an opponent using a creature other than Weaver of Harmony, triggering Nature's Will.
Holding priority, activate all mana-producing lands you control except Weaver of Harmony by tapping them, adding at least {1}{G}.
Activate Weaver of Harmony by paying {G} and tapping it, copying Nature's Will's trigger.
Resolve the copy of Nature's Will's trigger, untapping all lands you control and tapping all lands the defending player controls.
Repeat from step 2.

Infinite mana nontoken creatures you control can produce

Infinite untap of nontoken creatures you control

Ashaya, Soul of the Wild

Weaver of Harmony

Stormtide makes everything an island, choke prevents them from untapping.
Nature's Will can untap your lands.

Lock

Mass Land Denial

Lands do not untap

Lands your opponents control do not untap

Stormtide Leviathan

Choke

Activate any number of lands by tapping them, adding at least {2}{R}{R}.
Cast Relentless Assault by paying {2}{R}{R}, causing you to untap all creatures that attacked this turn and causing you to get an additional combat and main phase after this one.
At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of Eternal Witness with haste.
When the Eternal Witness token enters, it triggers, returning Relentless Assault from your graveyard to your hand.
Deal combat damage to an opponent. Nature's Will triggers, untapping all lands you control.
Move to your next main phase and repeat from step 1.

Combos with "Nature's Will"