Time Sieve, Myr Battlesphere, Teleportation Circle, and Mahadi, Emporium Master

Prerequisites

• Time Sieve on the battlefield
• Myr Battlesphere on the battlefield
• Teleportation Circle on the battlefield
• Mahadi, Emporium Master on the battlefield
• You control at least one additional artifact

Steps

1. At the beginning of your end step, Teleportation Circle and Mahadi trigger
2. Resolve the Teleportation Circle trigger, blinking Myr Battlesphere
3. When Myr Battlesphere enters the battlefield, its first ability triggers, creating four 1/1 Myr artifact creature tokens
4. Activate Time Sieve by tapping it and sacrificing the Myrs and another artifact, causing you to take an extra turn after this one
5. Resolve the Mahadi trigger, creating at least four Treasure artifact tokens
6. Repeat each turn

Results

• Infinite turns