Time Sieve + Myr Battlesphere + Soulherder + Thopter Spy Network

Prerequisites

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Steps

1. 1At the beginning of your upkeep, Thopter Spy Network's first ability triggers, creating a 1/1 Thopter artifact creature token.
2. 2At the beginning of your end step, Soulherder's second ability triggers, blinking Myr Battlesphere.
3. 3When Myr Battlesphere enters the battlefield, it and Soulherder's first abilities trigger.
4. 4Resolve the Soulherder trigger, putting a +1/+1 counter on it.
5. 5Resolve the Myr Battlesphere trigger, creating four 1/1 Myr artifact creature tokens.
6. 6Activate Time Sieve by tapping it, sacrificing the Thopter and the four Myrs, causing you to take an extra turn after this one.
7. 7Repeat each turn.

Effects

• Infinite turns
• Lock