Time Sieve + Mycosynth Lattice + Kiki-Jiki, Mirror Breaker + Abhorrent Overlord

Time Sieve

Mycosynth Lattice

Kiki-Jiki, Mirror Breaker

Abhorrent Overlord

How it works

1. Activate Kiki-Jiki by tapping it, creating a 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.

By turning every single permanent on the battlefield into an artifact, Mycosynth Lattice lays the groundwork for this entire engine to function seamlessly. This allows Kiki-Jiki, Mirror Breaker to easily target nonlegendary permanents, generating a steady stream of copies like the mighty Abhorrent Overlord. When the Overlord copy enters, its devotion-fueled trigger floods the board with Harpy tokens, which—thanks to Mycosynth Lattice making them artifacts—feed directly into Time Sieve's sacrifice requirement. You can then instantly tap Time Sieve to take infinite extra turns, locking down the game while Kiki-Jiki repeats the process anew on each subsequent turn.