You control a nontoken creature other than Quirion Ranger that does not have summoning sickness.

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

Your devotion to green is at least six.

Activate Karametra's Acolyte by tapping it, adding at least six .
Activate Kogla by paying , returning Karametra's Acolyte from the battlefield to your hand.
Cast Karametra's Acolyte by paying .
Repeat.

Selvala does not have summoning sickness.

Activate Selvala, Heart of the Wilds by paying and tapping it, adding at least .
Activate Quirion Ranger by returning it to your hand, untapping Selvala.
Cast Quirion Ranger by paying .
Repeat for infinite green mana.
Once you have infinite green mana, you may activate Selvala for infinite colored mana.

Argothian Elder does not have summoning sickness.

Activate Argothian Elder by tapping it, untapping itself and any other land.
Activate the land by tapping it, adding one mana of any color that land can produce.
Repeat.

Karametra's Acolyte does not have summoning sickness.

Activate Karametra's Acolyte by tapping it, adding at least .
Activate Scryb Ranger by returning it to your hand from the battlefield, untapping Karametra's Acolyte.
Cast Scryb Ranger by paying .
Repeat.

Elvish Archdruid does not have summoning sickness.
You control at least two Elves.

Activate Elvish Archdruid by tapping it, adding at least .
Activate Scryb Ranger by returning it to your hand from the battlefield, untapping Elvish Archdruid.
Cast Scryb Ranger by paying .
Repeat.
If you control three or more Elves, this combo nets infinite green mana.

Marwyn does not have summoning sickness and has power 2 or greater.

Activate Marwyn by tapping it, adding at least .
Activate Scryb Ranger by returning it to your hand from the battlefield, untapping Marwyn.
Cast Scryb Ranger by paying .
Repeat.
If Marwyn has power 3 or greater, this combo nets infinite green mana.

A non-Quirion Ranger nontoken creature you control does not have summoning sickness.

Activate any nontoken creature besides Quirion Ranger using its Forest ability by tapping it, adding .
When you tap that creature for mana, Leyline of Abundance triggers, adding .
Activate Quirion Ranger by returning itself from the battlefield to your hand, untapping that creature.
Cast Quirion Ranger by paying .
Repeat.
Once you have infinite mana, you may activate Leyline of Abundance infinite times.

Selvala does not have summoning sickness.
You control a creature with power nine or greater.

Activate Selvala by paying and tapping it, adding at least .
Cast Vitalize by paying , untapping all creatures you control.
Activate Kogla by paying , returning Eternal Witness from the battlefield to your hand.
Cast Eternal Witness by paying .
When Eternal Witness enters the battlefield, it triggers, returning Vitalize from your graveyard to your hand.
Repeat.

Marwyn does not have summoning sickness and has a power of eight or greater.

Activate Marwyn by tapping it, adding at least eight .
Cast Vitalize by paying , untapping all creatures you control.
Activate Kogla by paying , returning Eternal Witness from the battlefield to your hand.
Cast Eternal Witness by paying .
When Eternal Witness enters the battlefield, it triggers, returning Vitalize from your graveyard to your hand.
Repeat.

Your devotion to green is at least eight.

Activate Nykthos by paying and tapping it, adding at least eight .
Activate Wakeroot Elemental by paying , untapping Nykthos and causing it to become a 5/5 Elemental creature with haste until end of turn that is still a land.
Repeat.

You control at least six creatures.

Activate Gaea's Cradle by tapping it, adding at least six .
Activate Wakeroot Elemental by paying , untapping Gaea's Cradle and causing it to become a 5/5 Elemental creature with haste until end of turn that is still a land.
Repeat.

Cradle of the Sun.
You control at least six creatures.

Activate Itlimoc by tapping it, adding at least six .
Activate Wakeroot Elemental by paying , untapping Itlimoc and causing it to become a 5/5 Elemental creature with haste until end of turn that is still a land.
Repeat.

Weaver of Harmony does not have summoning sickness.
You control at least two mana-producing lands and/or creatures, one of which must be able to produce at least .

At the beginning of the next upkeep, Awakening triggers.
Holding priority, activate all mana-producing lands and creatures you control by tapping them, adding at least .
Activate Weaver of Harmony by paying and tapping it, copying Awakening's trigger.
Resolve the copy of Awakening's trigger, untapping all lands and creatures.
Repeat from step 2.

Activate Castle Garenbrig's second ability by paying and tapping it, adding eighteen that can only be spent to cast creature spells or to activate abilities of creatures.
Activate Wakeroot Elemental by paying , untapping Castle Garenbrig and causing it to become a 5/5 Elemental creature with haste that's still a land.
Repeat.

Once you have infinite green mana, you can use Wakeroot Elemental to untap any other land(s) infinitely

Ashaya does not have summoning sickness.

Activate Ashaya by tapping it, adding .
Activate Wirewood Symbiote by returning it from the battlefield to your hand, untapping Ashaya.
Cast Wirewood Symbiote by paying .
Repeat.

Activate Ant Queen by paying , creating two 1/1 Insect creature tokens.
Activate two Insects by tapping them, adding .
Repeat.

Activate Ant Queen by paying , creating two 1/1 Insect creature tokens.
Activate two Insects by tapping them, adding .
Repeat.

Weaver of Harmony does not have summoning sickness.
You control at least two mana-producing lands except Weaver of Harmony, one of which must be a Forest.

At the beginning of your end step, Wilderness Reclamation triggers.
Holding priority, activate all mana-producing lands you control except Weaver of Harmony by tapping them, adding at least .
Activate Weaver of Harmony by paying and tapping it, copying Wilderness Reclamation's trigger.
Resolve the copy of Wilderness Reclamation's trigger, untapping all lands you control and tapping all lands the defending player controls.
Repeat from step 2.

On your upkeep, activate Words of Wilding by paying .
On your draw step, create two Bear tokens.
Activate two Bear tokens by tapping itself, adding one mana of any color.
Activate World of Wilding by paying .
Activate Greater Good by sacrificing a Bear token, creating four Bear tokens and discarding three cards.
Activate two Bear tokens by tapping those, adding two mana of any colors.
Repeat from step 4.

Cryptic Trilobite has at least two +1/+1 counters on it.
Gilder Bairn does not have summoning sickness.

Activate Gilder Bairn by tapping it, adding .
Activate Gilder Bairn by paying and untapping it, doubling each counter on Cryptic Trilobite.
Activate Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding that can only be spent to activate abilities.
Repeat.
Once you have infinite +1/+1 counters on Cryptic Trilobite, you may instead double the counters on any other permanent(s).

On your upkeep, activate Words of Wilding by paying .
On your draw step, create two Bear tokens.
Activate two Bear tokens by tapping itself, adding one mana of any color.
Activate World of Wilding by paying .
Activate Greater Good by sacrificing a Bear token, creating four Bear tokens and discarding three cards.
Activate two Bear tokens by tapping those, adding two mana of any colors.
Repeat from step 4.

Activate Skyshroud Elf's second ability by paying due to Blossoming Tortoise, adding or .
Repeat.