How can you create a combo with Thousand-Year Storm, Narset's Reversal, Brass's Bounty?
user
[START OF COMBO]This combo can be formed with Thousand-Year Storm, Narset's Reversal, Brass's Bounty

Color identity: UR
Mana cost: {6}{R}, plus an additional {U}{U} available if you have not cast an instant or sorcery this turn
Steps:
  1. Cast Brass's Bounty by paying {6}{R}.
  2. Thousand-Year Storm triggers, creating a copy of Brass's Bounty for each instant and sorcery spell cast before it this turn.
  3. Resolve the first copy of Brass's Bounty, if applicable, creating a Treasure artifact token for each land you control.
  4. Repeat step 3 for each remaining copy, if applicable.
  5. If you created Treasures this way, activate two Treasures by tapping and sacrificing them, adding {U}{U}.
  6. Holding priority, cast Narset's Reversal by paying {U}{U}, targeting the original Brass's Bounty.
  7. Thousand-Year Storm triggers, creating a copy of Narset's Reversal for each instant and sorcery spell cast before it this turn, with each copy targeting the original Narset's Reversal.
  8. Resolve the first copy of Narset's Reversal, copying the original Narset's Reversal targeting Brass's Bounty, then returning the original Narset's Reversal to your hand.
  9. All remaining Narset's Reversal copies made in step 7 fizzle due to having no legal target.
  10. Resolve the Narset's Reversal copy made in step 8, copying Brass's Bounty and returning the original Brass's Bounty to your hand.
  11. Resolve the copy of Brass's Bounty, creating a Treasure artifact token for each land you control.
  12. Activate seven Treasures by tapping and sacrificing them, adding {6}{R}.
  13. 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:
  - Thousand-Year Storm 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 seven lands.
[END OF COMBO PREREQUISITES]
assistant