Time Sieve + Encroaching Mycosynth + Kiki-Jiki, Mirror Breaker + Avenger of Zendikar

Time Sieve

Encroaching Mycosynth

Kiki-Jiki, Mirror Breaker

Avenger of Zendikar

How it works

1. Activate Kiki-Jiki by tapping it, creating a token copy of Avenger of Zendikar with haste.
2. When the Avenger of Zendikar token enters the battlefield, its first ability triggers, creating at least four 0/1 Plant creature tokens.
3. Activate Time Sieve by tapping it, sacrificing the Avenger of Zendikar token and the Plant tokens, causing you to take an extra turn after this one.
4. Repeat each turn.

This brilliant looping mechanism relies entirely on Encroaching Mycosynth to turn your entire board into artifacts, transforming ordinary creatures into prime sacrificial fodder. Kiki-Jiki, Mirror Breaker generates a steady stream of copies, and when you target Avenger of Zendikar, those newly minted Plant tokens flood the battlefield alongside the main body. Because Encroaching Mycosynth ensures everything counts as an artifact, you can easily pay Time Sieve's five-sacrifice cost using the fresh tokens to instantly secure an extra turn.