Cast Doomsday Excruciator by paying {B}{B}{B}{B}{B}{B}.
When Doomsday Excruciator enters the battlefield, it triggers, exiling all but the bottom six cards of each player's library.
Activate Rakdos by sacrificing Doomsday Excruciator.
When Doomsday Excruciator dies, Rakdos's first ability triggers, exiling the top six cards of an opponent's library.
When the opponent targeted in step 4 would draw a card during their next draw step, they will instead lose the game due to having zero cards in their library.

Each opponent loses the game

Exile each opponent's library

Rakdos, the Muscle

Doomsday Excruciator

Activate Spawnsire of Ulamog's first ability by paying {4}, creating two 0/1 Eldrazi Spawn creature tokens.
Activate the Eldrazi Spawns by sacrificing them, adding {C}{C}.
When the Eldrazi Spawns die, Pitiless Plunderer triggers twice, creating two Treasure artifact tokens.
Activate the Treasures by tapping and sacrificing them, adding {2}.
Repeat.

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Spawnsire of Ulamog

Pitiless Plunderer

Activate Reckless Barbarian by sacrificing it, adding {R}{R}.
When Reckless Barbarian dies, Pitiless Plunderer and Rakdos trigger.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding {B}.
Holding priority, activate Haunted Crossroads by paying {B}, putting Reckless Barbarian from your graveyard onto the top of your library.
Resolve the Rakdos trigger, exiling the top two cards of your library, including Reckless Barbarian, with the ability to cast them until your next turn.
Cast Reckless Barbarian from exile by paying {1}{R}.
Repeat.

Infinite storm count

Exile your library with the ability to play the exiled cards until your next turn

Reckless Barbarian

Haunted Crossroads

Activate Blood Pet by sacrificing it, adding {B}.
When Blood Pet dies, Pitiless Plunderer and Rakdos trigger.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Holding priority, activate Haunted Crossroads by paying {B}, putting Blood Pet from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile Blood Pet from the top of your library with the ability to play it until your next end step.
Activate the Treasure by tapping and sacrificing it, adding {1}
Cast Blood Pet from exile by paying {1}.
Repeat.

Blood Pet

Activate Blood Pet by sacrificing it, adding {B}.
When Blood Pet dies, Skittering Precursor and Rakdos trigger.
Resolve the Skittering Precursor trigger, creating a 0/1 Eldrazi Spawn creature token.
Holding priority, activate Haunted Crossroads by paying {B}, putting Blood Pet from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile Blood Pet from the top of your library with the ability to play it until your next end step.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Cast Blood Pet from exile by paying {1}.
Repeat.

Skittering Precursor

Cast Ignot Chewer for its evoke cost by paying {R}.
Birgi triggers, adding {R}.
When Ingot Chewer enters the battlefield, it triggers twice.
Resolve the first trigger, destroying target artifact.
Resolve the second trigger, causing you to sacrifice Ingot Chewer.
When Ingot Chewer dies, Pitiless Plunderer and Rakdos trigger.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Holding priority, activate the Treasure by tapping and sacrificing it, adding {B}.
Activate Haunted Crossroads by paying {B}, putting Ingot Chewer from your graveyard onto the top of your library.
Resolve the Rakdos trigger from step 6, causing you to exile the top five cards of your library, including Ingot Chewer, with the ability to play those cards until end of turn.
Cast Ingot Chewer from exile for its evoke cost by paying {R}.
Repeat from step 2.

Infinite Treasure tokens

Infinite colored mana

Infinite colorless mana

Infinite creature tokens

Ingot Chewer

Birgi, God of Storytelling // Harnfel, Horn of Bounty

If Runaway Steam-Kin has three or more +1/+1 counters on it, activate Runaway Steam-Kin by removing three +1/+1 counters from it, adding {R}{R}{R}.
Cast Ignot Chewer for its evoke cost by paying {R}.
Runaway Steam-Kin triggers, putting a +1/+1 counter on it.
When Ingot Chewer enters the battlefield, it triggers twice.
Resolve the first trigger, destroying target artifact.
Resolve the second trigger, causing you to sacrifice Ingot Chewer.
When Ingot Chewer dies, Pitiless Plunderer and Rakdos trigger.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Holding priority, activate the Treasure by tapping and sacrificing it, adding {B}.
Activate Haunted Crossroads by paying {B}, putting Ingot Chewer from your graveyard onto the top of your library.
Resolve the Rakdos trigger from step 7, causing you to exile the top five cards of your library, including Ingot Chewer, with the ability to play those cards until end of turn.
If Runaway Steam-Kin has three or more +1/+1 counters on it, activate Runaway Steam-Kin by removing three +1/+1 counters from it, adding {R}{R}{R}.
Cast Ingot Chewer from exile for its evoke cost by paying {R}.
Repeat from step 3.

Runaway Steam-Kin

Activate Chatterfang by paying {B} and sacrificing another Squirrel.
When the Squirrel dies, Pitiless Plunderer triggers, creating a 1/1 Squirrel creature token and a Treasure token.
Activate a Treasure token by tapping and sacrificing it, adding {B}.
Repeat.
Resolve all Chatterfang abilities, causing any number of target creatures to get +1/-1 until end of turn any number of times.

Reduce the toughness of creatures opponents control to 0

Chatterfang, Squirrel General

Have a creature you control die.
Pitiless Plunderer makes a treasure token.
The token enters and dies as a 0/0.
Pitiless Plunderer makes a treasure token.
Repeat

Draw the game

March of the Machines

Titania's Song

Cast the instant or sorcery by paying its mana cost.
Holding priority, activate Stella Lee by tapping it, copying the instant or sorcery.
Resolve the copy of the instant or sorcery, untapping Stella Lee.
Repeat from step 2.

Infinite copies of one instant or sorcery

Infinite magecraft triggers

Instant or Sorcery that untaps a Creature

Stella Lee, Wild Card

Cast Moritte either from your hand or from the command zone by paying {2}{G}{U}{U} plus commander tax if applicable. Choose to have it enter as a copy of the persist creature that is still legendary.
Put Moritte into your graveyard due to the legend rule. When it dies, its persist ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it due to its ability. Choose to have it enter as a copy of the persist creature that is still legendary.
Repeat step 2.

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