How can you create a combo with Xira, the Golden Sting, Breath of Fury, Concordant Crossroads?
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[START OF COMBO]This combo can be formed with Xira, the Golden Sting, Breath of Fury, Concordant Crossroads

Color identity: BRG
Mana cost: 
Steps:
  1. Declare Xira and the creature with Breath of Fury attached as attackers.
  2. Xira triggers, putting an egg counter on any other creature you control.
  3. Deal combat damage to an opponent using the creature with Breath of Fury attached and Xira.
  4. Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to any other creature you control with an egg counter on it, then causing you to untap all creatures you control and to get an additional combat phase after this one.
  5. When the creature that had Breath of Fury attached dies, Xira triggers, causing you to draw a card and create a 1/1 Insect creature token.
  6. Repeat each combat phase.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Near-infinite combat damage
  - Near-infinite combat phases
  - Near-infinite death triggers
  - Near-infinite enters the battlefield
  - Near-infinite leaves the battlefield
  - Near-infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Breath of Fury attached to any other creature you control with an egg counter on it.
  - You control at least one additional creature.
  - An opponent cannot block and kill creatures you control.
[END OF COMBO PREREQUISITES]
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