River Song, Ardent Dustspeaker, and Capture of Jingzhou

Prerequisites

• River Song on the battlefield
• Ardent Dustspeaker on the battlefield
• Capture of Jingzhou in hand
• Ardent Dustspeaker does not have summoning sickness, and cannot be blocked and killed by an opponent
• each turn available

Steps

1. Cast Capture of Jingzhou by paying , 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

Results

• Near-infinite turns
• Skip your draw step