How can you create a combo with Doomsday, Grenzo, Dungeon Warden, Kiki-Jiki, Mirror Breaker, Conspicuous Snoop, Torch Courier, Brazen Buccaneers, Goblin Firestarter?
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[START OF COMBO]This combo can be formed with Doomsday, Grenzo, Dungeon Warden, Kiki-Jiki, Mirror Breaker, Conspicuous Snoop, Torch Courier, Brazen Buccaneers, Goblin Firestarter

Color identity: BR
Mana cost: {4}{B}{B}{B}{R}
Steps:
  1. Cast Doomsday by paying {B}{B}{B}, searching your library and graveyard for Torch Courier, Kiki-Jiki, Goblin Firestarter, Brazen Buccaneers and Conspicuous Snoop, exiling all other cards from your graveyard and library, and then placing the remaining cards on top of your library in the order previously listed and losing half your life, rounded up.
  2. Activate Grenzo by paying {2}, putting Conspicuous Snoop into your graveyard and then onto the battlefield.
  3. Cast Torch Courier from the top of your library by paying {R}.
  4. Activate Torch Courier by sacrificing it, giving Conspicuous Snoop haste until end of turn.
  5. Activate Conspicuous Snoop using Kiki-Jiki's ability by tapping it, creating a token copy of Conspicuous Snoop with haste.
  6. Repeat step 5 with the new Conspicuous Snoop token an arbitrarily large amount of times.
  7. Activate Grenzo by paying {2}, putting Brazen Buccaneers into your graveyard and then onto the battlefield.
  8. Brazen Buccaneers enters the battlefield, revealing Kiki-Jiki, putting a +1/+1 counter on Brazen Buccaneers and putting Kiki-Jiki into your graveyard.
  9. Activate a Conspicuous Snoop using Goblin Firestarter's ability by sacrificing it, dealing 1 damage to any target.
  10. Repeat from step 9.[END OF COMBO STEPS]

Result:
  - Each opponent loses the game
  - Infinite creature tokens with haste
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite tap triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Doomsday must be in your hand
  - Grenzo, Dungeon Warden must be on the battlefield
  - Kiki-Jiki, Mirror Breaker must be in the graveyard or in the library
  - Conspicuous Snoop must be in the graveyard or in the library
  - Torch Courier must be in the graveyard or in the library
  - Brazen Buccaneers must be in the graveyard or in the library
  - Goblin Firestarter must be in the graveyard or in the library
  - It is your precombat main phase.
  - Your life total is at least 2.
[END OF COMBO PREREQUISITES]
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