Time Sieve, Myr Battlesphere, and Artificer Class

Prerequisites

• Time Sieve on the battlefield
• Myr Battlesphere on the battlefield
• Artificer Class on the battlefield
• Artificer Class is level three

Steps

1. At the beginning of your end step, Artificer Class triggers, creating a token copy of Myr Battlesphere
2. The Myr Battlesphere token enters the battlefield, creating four 1/1 Myr creature tokens
3. Activate Time Sieve by tapping it, sacrificing the Myr Battlesphere token and sacrificing the four Myr tokens, causing you to take an extra turn after this one
4. Repeat each turn

Results

• Infinite turns