Time Sieve, Mycosynth Lattice, Helm of the Host, and Abhorrent Overlord

Prerequisites

• Time Sieve on the battlefield
• Mycosynth Lattice on the battlefield
• Helm of the Host on the battlefield
• Abhorrent Overlord on the battlefield
• Helm of the Host attached to Abhorrent Overlord

Steps

1. At the beginning of your combat phase, Helm of the Host triggers, creating at least one token copy of Abhorrent Overlord with haste
2. When the Abhorrent Overlord token enters the battlefield, it triggers, creating at least four 1/1 Harpy creature tokens
3. Activate Time Sieve by tapping it, sacrificing the Abhorrent Overlord token and the Harpy tokens, causing you to take an extra turn after this one
4. Repeat each turn

Results

• Infinite turns