Dockside Extortionist, Time Sieve, and Thassa, Deep-Dwelling

Prerequisites

• Dockside Extortionist on the battlefield
• Time Sieve on the battlefield
• Thassa, Deep-Dwelling on the battlefield
• Opponents control at least five artifacts and/or enchantments

Steps

1. At the beginning of your end step, Thassa triggers, blinking Dockside Extortionist
2. Dockside Extortionist enters the battlefield, creating at least five Treasure tokens
3. Activate Time Sieve by tapping and sacrificing five Treasures, causing you to take an extra turn after this one
4. Repeat each turn

Results

• Infinite turns