How can you create a combo with Twinning Staff, Dramatic Reversal?
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[START OF COMBO]This combo can be formed with Twinning Staff, Dramatic Reversal

Color identity: U
Mana cost: {8}{U}
Steps:
  1. Cast Dramatic Reversal by paying {1}{U}.
  2. Holding priority, activate Twinning Staff by paying {7} and tapping it, creating two copies of Dramatic Reversal.
  3. Resolve the first Dramatic Reversal copy, untapping all nonland permanents you control.
  4. Activate all mana producing nonland permanents you control by tapping them, adding at least {4}.
  5. Resolve the second Dramatic Reversal copy, untapping all nonland permanents you control.
  6. Activate all mana producing nonland permanents you control by tapping them, adding at least {4}.
  7. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite magecraft triggers
  - Infinite mana nonland permanents you control can produce
  - Infinite tap triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Twinning Staff must be on the battlefield
  - Dramatic Reversal must be in your hand
  - Nonland permanents you control can tap to produce at least {4}.
[END OF COMBO PREREQUISITES]
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