How can you create a combo with Swarm Intelligence, Narset's Reversal, Brass's Bounty?
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[START OF COMBO]This combo can be formed with Swarm Intelligence, Narset's Reversal, Brass's Bounty

Color identity: UR
Mana cost: {6}{R}
Steps:
  1. Cast Brass's Bounty by paying {6}{R}.
  2. Swarm Intelligence triggers, creating a copy of Brass's Bounty.
  3. Resolve the Brass's Bounty copy, creating at least five Treasure tokens.
  4. Activate two of the Treasure tokens by tapping and sacrificing them, adding {U}{U}.
  5. Holding priority, cast Narset's Reversal by paying {U}{U}, targeting Brass's Bounty.
  6. Swarm Intelligence triggers, creating a copy of Narset's Reversal, targeting the original Narset's Reversal.
  7. Resolve the Narset's Reversal copy, creating a copy of the original Narset's Reversal targeting Brass's Bounty and returning the original Narset's Reversal to your hand.
  8. Resolve Narset's Reversal, creating a copy of Brass's Bounty and returning it to your hand.
  9. Resolve Brass's Bounty, creating at least five Treasure tokens.
  10. Activate seven Treasure tokens by tapping and sacrificing them, adding {6}{R}.
  11. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite magecraft triggers
  - Infinite storm count
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Swarm Intelligence must be on the battlefield
  - Narset's Reversal must be in your hand
  - Brass's Bounty must be in your hand
  - You control at least five lands.
[END OF COMBO PREREQUISITES]
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