Activate Jungle Basin by tapping it, adding {1}{G}.
Activate Argothian Elder by tapping it, untapping Jungle Basin and Wirewood Lodge.
Activate Wirewood Lodge's second ability by paying {G} and tapping it, untap Argothian Elder.
Repeat.

Infinite colorless mana

Argothian Elder

Jungle Basin

Wirewood Lodge

Activate Jungle Basin by tapping it, adding {C}{G}.
Activate Silvanus's Invoker by paying {1}, untapping Jungle Basin and causing it to become an 8/8 Elemental with trample and haste in addition to its other types until end of turn.
Repeat.
Once you have infinite mana, you may tap and untap any other land(s) you control, and if you control lands that can produce {R} and {G}, use the mana to activate Agatha of the Vile Cauldron's ability.

Infinitely large creatures except Agatha of the Vile Cauldron until end of turn

Infinite mana lands you control can produce

Infinite untap of lands you control

Infinite green mana

Agatha of the Vile Cauldron

Silvanus's Invoker

Activate Jungle Basin by tapping it, adding {C}{G}.
Activate another mana producing land by tapping it, adding at least {U}.
Activate Lilysplash Mentor by paying {1}{G}{U}, blinking Cloud of Faeries.
When Cloud of Faeries enters the battlefield, it triggers, untapping Jungle Basin and another mana-producing land.
Repeat.

Infinite LTB

Infinite ETB

Lilysplash Mentor

Cloud of Faeries

Play Jungle Basin.
When Jungle Basin enters, it and Retreat to Emeria trigger.
Resolve the Retreat to Emeria trigger, creating a 1/1 Kor Ally creature token.
When the Kor Ally enters, Haru triggers, earthbending Jungle Basin.
Resolve the Jungle Basin trigger from step 2, causing you to sacrifice it
Haru triggers, returning Jungle Basin from your graveyard to the battlefield.
Repeat from step 2.

Infinite lifegain triggers

Infinite lifegain

Infinite creature tokens

Infinite landfall triggers

Retreat to Emeria

Haru, Hidden Talent

Activate Jungle Basin by tapping it, adding {C}{G}.
Activate Ley Weaver by tapping it, untapping Wirewood Lodge and Jungle Basin.
Activate Wirewood Lodge's second ability by paying {G} and tapping it, untapping Seeker of Skybreak.
Activate Seeker of Skybreak by tapping it, untapping Ley Weaver.
Repeat.

Ley Weaver

Seeker of Skybreak

Activate Jungle Basin by tapping it, adding {C}{G}.
Activate Deserted Temple's second ability by paying {1} and tapping it, targeting itself.
Locus of Enlightenment triggers, copying Deserted Temple's ability, targeting Jungle Basin.
Resolve both Deserted Temple abilities, untapping it and Jungle Basin.
Repeat.

The Enigma Jewel // Locus of Enlightenment

Deserted Temple

Activate Jungle Basin and another land by tapping them, adding at least {2}{U}.
Cast Frantic Search by paying {2}{U}.
Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
Holding priority, activate Kitsa's second ability by paying {2} and tapping it, copying Frantic Search.
Resolve the copy of Frantic Search, causing you to loot twice and untap Minamo, Jungle Basin and another land.
Activate Jungle Basin and another land by tapping them, adding at least {2}{U}.
Activate Minamo's second ability by paying {U} and tapping it, untapping Kitsa.
Repeat from step 4.

Infinite self-discard triggers

Infinite draw triggers

Infinite looting

Near-infinite magecraft triggers

Kitsa, Otterball Elite

Frantic Search

Minamo, School at Water's Edge

Activate Jungle Basin by tapping it, adding {C}{G}.
Activate Ley Weaver by tapping it, untapping Wirewood Lodge and Jungle Basin.
Activate Wirewood Lodge's second ability by paying {G} and tapping it, untapping Ley Weaver.
Repeat.

Psychic Paper

Activate Jungle Basin and up to three other lands by tapping them, adding at least {4}{W}.
Activate Adagia by paying {3}{W} and tapping it, creating a token copy of Treachery that is legendary attached to any creature.
If you control two legendary Treachery permanents, put one into your graveyard due to the legend rule.
The Treachery token's enter-the-battlefield ability triggers, untapping Adagia, Jungle Basin and up to three other lands.
Repeat.

Adagia, Windswept Bastion

Treachery

Activate Lotus Field by tapping it, adding {U}{U}{U}.
Activate Jungle Basin by tapping it, adding {C}{G}.
Activate Trazyn by paying {3} and tapping it, untapping Minamo, Lotus Field and Jungle Basin.
Activate Minamo's second ability by paying {U}, untapping Trazyn.
Repeat from step 3.

Combos with "Jungle Basin"