You control at least one creature with power two or greater.
You have not cast an instant and/or sorcery spell this turn.

Cast Repeated Reverberation by paying and sacrificing a creature with power two or greater.
Repeated Reverberation's casualty ability triggers, creating two copies of it due to Twinning Staff.
Resolve each Repeated Reverberation, causing you to copy the next instant or sorcery spell you cast six times.
Cast Vraska's Fall by paying .
Each Repeated Reverberation triggers, copying Vraska's Fall a total of nine times due to Twinning Staff.
Resolve each Vraska's Fall, causing each opponent to get ten poison counters and sacrifice ten creatures and/or planeswalkers.
Each opponent loses the game due to having ten or more poison counters.

You control at least one creature with power two or greater.
You have not cast an instant and/or sorcery spell this turn.
Your deck size is at least eleven.

Cast Repeated Reverberation by paying and sacrificing a creature with power two or greater.
Repeated Reverberation's casualty ability triggers, creating two copies of it due to Twinning Staff.
Resolve each Repeated Reverberation, causing you to copy the next instant or sorcery spell you cast six times.
Cast Prologue to Phyresis by paying .
Each Repeated Reverberation triggers, copying Prologue to Phyresis a total of nine times due to Twinning Staff.
Resolve each Prologue to Phyresis, causing each opponent to get ten poison counters, and you to draw ten cards.
Each opponent loses the game due to having ten or more poison counters.

You control at least one creature with power two or greater.
You have not cast an instant and/or sorcery spell this turn.
Your life total is at least twenty-one.
Your deck size is at least twenty-one.

Cast Repeated Reverberation by paying and sacrificing a creature with power two or greater.
Repeated Reverberation's casualty ability triggers, creating two copies of it due to Twinning Staff.
Resolve each Repeated Reverberation, causing you to copy the next instant or sorcery spell you cast six times.
Cast Infectious Inquiry by paying .
Each Repeated Reverberation triggers, copying Infectious Inquiry a total of nine times due to Twinning Staff.
Resolve each Infectious Inquiry, causing each opponent to get ten poison counters, and causing you to lose twenty life and draw twenty cards.
Each opponent loses the game due to having ten or more poison counters.

Cast Repeated Reverberation by paying , copying the next instant or sorcery spell you cast twice.
Cast Biovisionary by paying .
Holding priority, cast Double Major by paying , targeting Biovisionary.
Repeated Reverberation triggers, copying Double Major twice, with both copies targeting Biovisionary.
Resolve all Double Majors, creating three copies of the Biovisionary spells.
Resolve all Biovisionary spells, causing you to have a nontoken Biovisionary and three token Biovisionaries.
At the beginning of your end step, each Biovisionary triggers.
Resolve the first trigger, causing you to win the game.

Nonland permanents you control can tap to produce at least .

Activate all mana producing nonland permanents you control by tapping them, adding at least .
Cast Repeated Reverberation by paying , causing you to create two copies of the next instant spell you cast this turn.
Cast Dramatic Reversal by paying .
Repeated Reverberation triggers, creating two copies of Dramatic Reversal.
Resolve a copy of Dramatic Reversal, untapping all nonland permanents you control.
Activate all mana producing nonland permanents you control by tapping them, adding at least .
Activate Errant by paying and tapping it, creating a copy of the Dramatic Reversal copy.
Repeat from step 5.

Cast Repeated Reverberation by paying , copying the next instant or sorcery spell you cast twice.
Cast Quasiduplicate by paying , targeting Biovisionary.
Repeated Reverberation triggers, copying Quasiduplicate twice, with both copies targeting Biovisionary.
Resolve all Quasiduplicates, 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.

You control at least one creature with power two or greater.
You have not cast an instant and/or sorcery spell this turn.

Cast Repeated Reverberation by paying and sacrificing a creature with power two or greater.
Repeated Reverberation's casualty ability triggers, creating two copies of it due to Twinning Staff.
Resolve each Repeated Reverberation, causing you to copy the next instant or sorcery spell you cast six times.
Cast Phyresis Outbreak by paying .
Each Repeated Reverberation triggers, copying Phyresis Outbreak a total of nine times due to Twinning Staff.
Resolve each Phyresis Outbreak, causing each opponent to get ten poison counters.
Each opponent loses the game due to having ten or more poison counters.

Cast Repeated Reverberation by paying , copying the next instant or sorcery spell you cast twice.
Cast Cackling Counterpart by paying , targeting Biovisionary.
Repeated Reverberation triggers, copying Cackling Counterpart twice, with both copies targeting Biovisionary.
Resolve all Cackling Counterparts, 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.

Cast Repeated Reverberation by paying , copying the next instant or sorcery spell you cast twice.
Cast Croaking Counterpart by paying , targeting Biovisionary.
Repeated Reverberation triggers, copying Croaking Counterpart twice, with both copies targeting Biovisionary.
Resolve all Croaking Counterparts, creating three token copies of Biovisionary that are 1/1 Frogs.
At the beginning of your end step, each Biovisionary triggers.
Resolve the first trigger, causing you to win the game.

Cast Repeated Reverberation by paying , copying the next instant or sorcery spell you cast twice.
Cast Reality Spasm by paying at least , targeting at least three permanents and choosing the untap mode.
Repeated Reverberation triggers, copying Reality Spasm twice, targeting at least three permanents.
Holding priority, activate at least two mana-producing permanents you control by tapping them, adding at least .
Activate Errant by paying and tapping it, copying the Reality Spasm copy, targeting Errant and at least two mana-producing permanents you control.
Resolve the copy of Reality Spasm from step 3, untapping Errant and at least two mana-producing permanents you control.
Repeat from step 4.

It is recommended to pay at least extra when casting Reality Spasm initially. If you choose not to, you will not get infinite untap of permanents or mana from those permanents, unless one of the mana-producing permanents taps to produce two or more mana.