Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggers
How it works
Activate Kiki-Jiki by tapping it, creating a token copy of Lumbering Battlement.
When the Lumbering Battlement token enters the battlefield, it triggers, exiling Kiki-Jiki until Lumbering Battlement leaves the battlefield.
Activate Yahenni by sacrificing the Lumbering Battlement token.
When the Lumbering Battlement token dies, Kiki-Jiki is returned from exile to the battlefield.
Resolve the Yahenni ability.
Repeat.
This elegant loop transforms Kiki-Jiki, Mirror Breaker's legendary limitation into an asset by using a copied Lumbering Battlement to tuck Kiki-Jiki safely away into exile. Once Kiki-Jiki is hidden inside the Battlement, you simply turn to Yahenni, Undying Partisan to sacrifice the Lumbering Battlement token, which immediately drops Kiki-Jiki right back onto the battlefield ready to repeat the process. Because Yahenni's sacrifice ability also conveniently grants itself indestructible, you can safely leverage this infinite cycle to churn out endless leaves-the-battlefield, entry, and death triggers at will.