How can you create a combo with River Song, Ardent Dustspeaker, Capture of Jingzhou?
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[START OF COMBO]This combo can be formed with River Song, Ardent Dustspeaker, Capture of Jingzhou

Color identity: UR
Mana cost: {3}{U}{U} each turn
Steps:
  1. Cast Capture of Jingzhou by paying {3}{U}{U}, causing you to take an extra turn after this one.
  2. Move to your combat phase, and declare Ardent Dustspeaker as an attacker.
  3. Ardent Dustspeaker triggers, causing you to put Capture of Jingzhou on the bottom of your library from your graveyard, then exile the top two cards of your library with the ability to play them this turn.
  4. Move to your next turn, drawing Capture of Jingzhou from the bottom of your library due to River Song during your draw step.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Near-infinite turns
  - Skip your draw step[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - River Song must be on the battlefield
  - Ardent Dustspeaker must be on the battlefield
  - Capture of Jingzhou must be in your hand
  - Ardent Dustspeaker does not have summoning sickness, and cannot be blocked and killed by an opponent.
[END OF COMBO PREREQUISITES]
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