River Song + Conjurer's Bauble + Salvaging Station + Capture of Jingzhou

River Song

Conjurer's Bauble

Salvaging Station

Capture of Jingzhou

How it works

1. If Conjurer's Bauble is in your graveyard, activate Salvaging Station by tapping it, returning Conjurer's Bauble from your graveyard to the battlefield.
2. Cast Capture of Jingzhou by paying its mana cost, causing you to take an extra turn after this one.
3. Activate Conjurer's Bauble by tapping and sacrificing it, putting Capture of Jingzhou onto the bottom of your library from your graveyard, and then causing you to draw Capture of Jingzhou from the bottom of your library due to River Song.
4. Repeat each turn.