Thor, God of Thunder, Capture of Jingzhou, and Y'shtola Rhul

Prerequisites

• Thor, God of Thunder on the battlefield
• Capture of Jingzhou in hand
• Y'shtola Rhul on the battlefield
• each turn available

Steps

1. Cast Capture of Jingzhou by paying its mana cost
2. Thor's second ability triggers, dealing damage to any target
3. Resolve Capture of Jingzhou, causing you to take an extra turn after this one
4. Blink Thor using Y'shtola Rhul
5. When Thor enters, it triggers, allowing you to cast Capture of Jingzhou from your graveyard until the end of your next turn
6. Move to your next turn
7. Cast Capture of Jingzhou from your graveyard by paying its mana cost
8. Repeat from step 2

Results

• Infinite turns
• Lock