How can you create a combo with Breath of Fury, Sharding Sphinx, Fervor?
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[START OF COMBO]This combo can be formed with Breath of Fury, Sharding Sphinx, Fervor

Color identity: UR
Mana cost: 
Steps:
  1. Deal combat damage to an opponent using the creature with Breath of Fury attached, triggering Breath of Fury and Sharding Sphinx.
  2. Resolve the Sharding Sphinx trigger, creating a 1/1 Thopter artifact creature token.
  3. Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the Thopter token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
  4. Repeat each combat phase.[END OF COMBO STEPS]

Result:
  - Infinite combat damage
  - Infinite combat phases
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana creatures you control can produce
  - Infinite sacrifice triggers
  - Infinite untap of creatures you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Breath of Fury attached to another artifact creature you control.
  - An opponent cannot block creatures you control.
[END OF COMBO PREREQUISITES]
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