How can you create a combo with Worldfire, Hive Mind, Thoughtseize, Tidal Barracuda?
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[START OF COMBO]This combo can be formed with Worldfire, Hive Mind, Thoughtseize, Tidal Barracuda

Color identity: UBR
Mana cost: {6}{B}{R}{R}{R}
Steps:
  1. Cast Thoughtseize by paying {B}.
  2. Hive Mind triggers, causing each opponent to create a copy of Thoughtseize.
  3. Holding priority, cast Worldfire by paying {6}{R}{R}{R}.
  4. Hive Mind triggers, causing each opponent to create a copy of Worldfire.
  5. Resolve each Worldfire on the stack, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one.
  6. Resolve the first opponent's copy of Thoughtseize, causing them to lose 2 life.
  7. The opponent loses the game due to having less than zero life.
  8. Repeat from step 6 for each remaining opponent.[END OF COMBO STEPS]

Result:
  - Each opponent loses the game
  - Exile all cards in all hands and graveyards
  - Exile all permanents
  - Near-infinite lifeloss[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Worldfire must be in your hand
  - Hive Mind must be on the battlefield
  - Thoughtseize must be in your hand
  - Tidal Barracuda must be on the battlefield
[END OF COMBO PREREQUISITES]
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