Time Sieve + Myr Battlesphere + Soulherder + Gandalf the White

Prerequisites

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Steps

1. 1At the beginning of your end step, Soulherder's second ability triggers, blinking Myr Battlesphere.
2. 2Myr Battlesphere's first ability and Soulherder's first ability trigger twice.
3. 3Resolve both Soulherder triggers, putting two +1/+1 counters on it.
4. 4Resolve both Myr Battlesphere triggers, creating eight 1/1 Myr artifact creature tokens.
5. 5Activate Time Sieve by tapping it and sacrificing five Myrs, causing you to take an extra turn after this one.
6. 6Repeat each turn.

Effects

• Infinite turns
• Lock