Activate any nontoken creature you control except Quirion Ranger by tapping it, adding {G}.
Activate Quirion Ranger by returning itself from the battlefield to your hand, untapping the creature tapped for mana.
Cast Quirion Ranger by paying {G}.
Repeat.

Infinite ETB

Infinite landfall triggers

Infinite LTB

Infinite storm count

Ashaya, Soul of the Wild

Quirion Ranger

Activate a basic Forest you control by tapping it, adding {G}.
Activate Quiron Ranger by returning a Forest to your hand from the battlefield, untapping Priest of Titania.
Activate Priest of Titania by tapping it, adding at least {G}{G}{G}{G}{G}.
Activate Wirewood Symbiote by returning Quiron Ranger to your hand, untapping Chulane.
Activate Chulane by paying {3} and tapping it, returning Wirewood Symbiote to your hand.
Cast Quiron Ranger by paying {G}.
Chulane triggers, causing you to draw a card and put a Forest from your hand onto the battlefield.
Cast Wirewood Symbiote by paying {G}.
Chulane triggers, causing you to draw a card and allowing you to put a land card from your hand onto the battlefield.
Repeat.

Infinite card draw

Infinite draw triggers

Near-infinite ETB

Near-infinite green mana

Near-infinite landfall triggers

Near-infinite LTB

Near-infinite storm count

Put all lands from your hand and library onto the battlefield

Chulane, Teller of Tales

Wirewood Symbiote

Priest of Titania

Cast Quirion Ranger by paying {G}.
Quirion Ranger enters the battlefield, triggering Cloudstone Curio.
Holding priority, activate Circle of Dreams Druid by tapping it, adding at least {G}{G}{G}.
Resolve the Cloudstone Curio trigger, returning Elvish Pioneer from the battlefield to your hand.
Activate Quirion Ranger by returning a basic Forest from the battlefield to your hand, untapping Circle of Dreams Druid.
Cast Elvish Pioneer by paying {G}.
Elvish Pioneer enters the battlefield, triggering itself and Cloudstone Curio.
Resolve the Elvish Pioneer trigger, putting a basic Forest from your hand onto the battlefield tapped.
Resolve the Cloudstone Curio trigger, returning Quirion Ranger from the battlefield to your hand.
Repeat.

Infinite green mana

Infinite mana creatures you control can produce

Infinite untap of creatures you control

Elvish Pioneer

Cloudstone Curio

Circle of Dreams Druid

Activate Llanowar Tribe by tapping it, adding {G}{G}{G}.
Cast Quirion Ranger by paying {G}.
Quirion Ranger enters the battlefield, triggering Cloudstone Curio, returning Elvish Pioneer from the battlefield to your hand.
Activate Quirion Ranger by returning a basic Forest from the battlefield to your hand, untapping Llanowar Tribe.
Cast Elvish Pioneer by paying {G}.
Elvish Pioneer enters the battlefield, triggering itself and Cloudstone Curio.
Resolve the Elvish Pioneer trigger, putting a basic Forest from your hand onto the battlefield tapped.
Resolve the Cloudstone Curio trigger, returning Quirion Ranger from the battlefield to your hand.
Repeat.

Llanowar Tribe

Combos with "Quirion Ranger"