Cast Multiversal Incursion by paying its mana cost
Holding priority, cast Naru Meha either from your hand or from the command zone by paying {2}{U}{U} plus commander tax, if applicable.
When Naru Meha enters the battlefield, it triggers, copying Multiversal Incursion
Resolve the copy of Multiversal Incursion, creating a token copy of each nontoken creature you control.
Put either Naru Meha into your graveyard due to the legend rule.
Repeat from step 3.

Infinite creature ETB

Infinite creature tokens

Infinite magecraft triggers

Infinite copies of nontoken creatures you control

Naru Meha, Master Wizard

Multiversal Incursion

Cast Multiversal Incursion by paying its mana cost, targeting a creature you control.
Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
When Dualcaster Mage enters the battlefield, it triggers, copying Multiversal Incursion, targeting Dualcaster Mage.
Resolve the copy of Multiversal Incursion, creating a token copy of Dualcaster Mage.
Repeat from step 3.

Dualcaster Mage

Cast Multiversal Incursion by paying its mana cost, creating a token copy of Mirror-Mad Phantasm.
Activate the Mirror-Mad Phantasm token by paying {1}{U}, shuffling the token into your library and milling your entire library due to it not having a card named Mirror-Mad Phantasm in it.

Infinite self-mill

Mirror-Mad Phantasm

Cast Multiversal Incursion by paying its mana cost
Holding priority, activate Echo Mage by tapping it, copying Multiversal Incursion twice
Resolve all Multiversal Incursion spells, creating three token copies of Biovisionary.
At the beginning of your end step, each Biovisionary triggers. Resolve the first trigger, causing you to win the game.

Win the game

Biovisionary

Echo Mage

Activate Thunderclap Drake by paying {2}{U} and sacrificing it.
Cast Multiversal Incursion by paying its mana cost
Thunderclap Drake triggers, copying Multiversal Incursion at least twice
Resolve all Multiversal Incursion spells, creating at least three copies of Biovisionary.
At the beginning of your end step, each Biovisionary triggers, causing you to win the game.

Thunderclap Drake

Cast Mnemonic Deluge by paying {6}{U}{U}{U}, exiling Multiversal Incursion and casting three copies of it without paying their mana costs.
Resolve the three Multiversal Incursion copies, creating three token copies of Biovisionary.
At the beginning of your end step, each Biovisionary you control triggers.
Resolve the first trigger, causing you to win the game.

Mnemonic Deluge

At the beginning of your precombat main phase. Summon: G.F. Cerberus triggers, putting a lore counter on it and triggering its third chapter ability, copying the next instant or sorcery spell you cast twice.
Cast Multiversal Incursion by paying its mana cost
Summon: G.F. Cerberus triggers, copying Multiversal Incursion twice, with the copies
Resolve all Multiversal Incursions, copying Biovisionary three times.
At the beginning of your end step, each Biovisionary triggers. Resolve the first trigger, causing you to win the game.

Summon: G.F. Cerberus

Cast Multiversal Incursion by paying its mana cost, creating a token copy of Bellowing Aegisaur.
Activate a mana-producing permanent you control by tapping it, adding at least {G}.
Activate Wayta by paying {G} and tapping it, causing Cacophodon and the nontoken Bellowing Aegisaur to fight each other, with each only taking 1 damage due to Temple Altisaur.
Cacophodon and Bellowing Aegisaur each trigger twice.
Resolve all Bellowing Aegisaur triggers, putting two +1/+1 counters on each other creature you control.
Resolve both Cacophodon triggers, untapping the mana-producing permanent and Wayta.
Repeat from step 2, alternating between having the token and nontoken Bellowing Aegisaur fight Cacophodon.

Combos with "Multiversal Incursion"