Activate Greater Good by sacrificing The Swarmlord.
Choose to return The Swarmlord to the command zone from your graveyard.
The Swarmlord dies, causing you to draw a card.
Resolve the Greater Good ability, causing you to draw a number of cards equal to The Swarmlord's power, and then discard three cards.
Activate Firemind Vessel by tapping it, adding two mana of different colors.
Activate Mind over Matter by discarding a card, untapping Firemind Vessel.
Repeat from step 5 until you have enough mana to cast The Swarmlord.
Cast The Swarmlord from the command zone by paying {3}{U}{R}{G} and commander tax, causing The Swarmlord to enter the battlefield with two +1/+1 counters for each time you've cast it from the command zone this game.
Repeat.

Infinite draw triggers

Infinite looting

Infinite self-discard triggers

Near-infinite death triggers

Near-infinite creature ETB

Near-infinite creature LTB

Near-infinite creature sacrifice triggers

The Swarmlord

Greater Good

Mind Over Matter

Firemind Vessel

Cast Universal Automaton from your hand or graveyard by paying {1}.
Activate Ashnod's Altar by sacrificing Universal Automaton, adding {1}.
When Universal Automaton dies, Zask triggers.
Holding priority, cast Universal Automaton from your graveyard by paying {1}.
Resolve the Zask trigger, causing you to mill two cards.
Repeat from step 2.

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite self-mill

Infinite colorless mana

Infinite storm count

Zask, Skittering Swarmlord

Universal Automaton

Ashnod's Altar

Vivien, Champion of the Wilds

Cast Universal Automaton from your hand or graveyard by paying {1}.
Activate Krark-Clan Ironworks by sacrificing Universal Automaton, adding {C}{C}.
When Universal Automaton dies, Zask triggers.
Holding priority, cast Universal Automaton from your graveyard by paying {1}.
Resolve the Zask trigger, causing you to mill two cards.
Repeat from step 2.

Krark-Clan Ironworks

Activate Thermopod by sacrificing another nontoken green Insect.
When the Insect dies, Zask and Verdant Succession trigger.
Resolve the Zask trigger, putting the Insect on the bottom of your library from your graveyard and causing you to mill two cards.
Resolve the Verdant Succession trigger, searching your library for that Insect and putting it onto the battlefield.
Repeat.

Near-infinite red mana

Green Nontoken Insect

Verdant Succession

Thermopod

Cast the Insect from your hand or graveyard by paying {0} due to Aluren.
Activate Thermopod by sacrificing the Insect.
When the Insect dies, Zask triggers.
Holding priority, cast the Insect from your graveyard by paying {0} due to Aluren.
Resolve the Zask ability, causing you to mill two cards.
Repeat from step 2.

Infinite red mana

Insect with MV<=3

Aluren

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