Cast Electroduplicate 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 Electroduplicate, targeting Dualcaster Mage.
Resolve the copy of Electroduplicate, creating a token copy of Dualcaster Mage.
Repeat from step 3.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite creature tokens with haste

Infinite magecraft triggers

Dualcaster Mage

Electroduplicate

Cast Electroduplicate by paying its mana cost, targeting a creature you control.
Holding priority, cast Naru Meha by paying {2}{U}{U}.
When Naru Meha enters the battlefield, it triggers, copying Electroduplicate, targeting Naru Meha.
Resolve the copy of Electroduplicate, creating a token copy of Naru Meha.
Put either Naru Meha into your graveyard due to the legend rule.
Repeat from step 3.

Naru Meha, Master Wizard

Cast Flamehold Grappler by paying {U}{R}{W}.
When Flamehold Grappler enters the battlefield, it triggers, copying the next spell you cast this turn.
Cast Electroduplicate by paying its mana cost, targeting Flamehold Grappler.
Flamehold Grappler and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Flamehold Grappler trigger, copying Electroduplicate, with the copy targeting Flamehold Grappler.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Electroduplicate, creating a token copy of Flamehold Grappler.
When the token Flamehold Grappler enters the battlefield, it triggers, copying the next spell you cast this turn.
Holding priority, activate two Treasures by tapping and sacrificing them, adding {U}{U}.
Cast Narset's Reversal by paying {U}{U}, targeting Electroduplicate
Flamehold Grappler and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure token.
Resolve the Flamehold Grappler trigger, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the copy of Narset's Reversal, returning the original Narset's Reversal to your hand and creating a copy of Narset's Reversal targeting Electroduplicate.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Narset's Reversal copy, returning Electroduplicate to your hand and creating a copy of Electroduplicate targeting Flamehold Grappler.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Electroduplicate copy, creating a token copy of Flamehold Grappler.
When the token Flamehold Grappler enters the battlefield, it triggers, copying the next spell you cast.
Activate up to four Treasures by tapping and sacrificing them, adding enough mana to cast Electroduplicate.
Repeat from step 3.

Infinite storm count

Infinite colored mana

Infinite Treasure tokens

Storm-Kiln Artist

Flamehold Grappler

Narset's Reversal

Cast Electroduplicate 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 Electroduplicate 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.

Infinite +1/+1 counters

Wayta, Trainer Prodigy

Bellowing Aegisaur

Cacophodon

Temple Altisaur

Cast Electroduplicate by paying its mana cost, targeting Biovisionary.
Holding priority, activate Echo Mage by tapping it, copying Electroduplicate twice, with both copies targeting Biovisionary.
Resolve all Electroduplicate 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 Electroduplicate by paying its mana cost, targeting Biovisionary.
Thunderclap Drake triggers, copying Electroduplicate at least twice, with all copies targeting Biovisionary.
Resolve all Electroduplicate 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

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 Electroduplicate by paying its mana cost, targeting Biovisionary.
Summon: G.F. Cerberus triggers, copying Electroduplicate twice, with the copies targeting Biovisionary.
Resolve all Electroduplicates, 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 Mnemonic Deluge by paying {6}{U}{U}{U}, exiling Electroduplicate and casting three copies of it without paying their mana costs.
Resolve the three Electroduplicate 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.

Combos with "Electroduplicate"