Time Sieve + Myr Battlesphere + Teleportation Circle + Gandalf the White

Prerequisites

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Steps

1. 1At the beginning of your end step, Teleportation Circle triggers, blinking Myr Battlesphere.
2. 2When Myr Battlesphere enters the battlefield, its first ability triggers twice, creating eight 1/1 Myr artifact creature tokens.
3. 3Activate Time Sieve by tapping it and sacrificing five Myrs, causing you to take an extra turn after this one.
4. 4Repeat each turn.

Effects

• Infinite turns
• Lock