Phantom Steed, Capture of Jingzhou, and Mnemonic Wall

Prerequisites

• Phantom Steed on the battlefield
• Capture of Jingzhou in hand
• Mnemonic Wall in exile
• An opponent can not block Phantom Steed
• available

Steps

1. Cast Capture of Jingzhou, taking an extra turn after this one
2. Attack with Phantom Steed
3. Phantom Steed triggers, creating a token copy of Mnemonic Wall that is tapped and attacking
4. Mnemonic Wall enters, returning Capture of Jingzhou from your graveyard to your hand
5. Pass the turn
6. Repeat

Results

• Infinite turns