Time Sieve, Desert Warfare, and Mycosynth Lattice

Prerequisites

• Time Sieve on the battlefield
• Desert Warfare on the battlefield
• Mycosynth Lattice on the battlefield
• You control at least five nontoken Deserts

Steps

1. Activate Time Sieve by tapping it and sacrificing five nontoken Deserts as they are artifacts due to Mycosynth Lattice
2. Desert Warfare's first ability triggers five times, causing you to return the Deserts from your graveyard to the battlefield at the beginning of your next end step
3. Resolve the Time Sieve ability, causing you to get an extra turn after this one
4. At the beginning of your end step, Desert Warfare triggers five times, returning the sacrificed Deserts from your graveyard to the battlefield
5. Repeat each turn

Results

• Infinite turns